TryOn sunglasses made for the real fit check.
TryOn uses the same frame structure as the regular 2nu sunglasses, so you can test size, comfort, and stability in real outdoor movement before committing to your performance pair.
Why TryOn exists
The real test is not the mirror angle. It is how the frame feels outside.
2nu is online-only by design. TryOn gives you a lower-entry way to check size, bridge feel, temple pressure, stability, and longer-wear comfort in the light, heat, and routes you actually use. The frame structure and core wearing feel match the regular pair, while the TryOn lens setup is for practical UV400 fit testing; once the fit is clear, you can choose the regular lens setup by purpose.
Choose the wearing feel first: classic, round, structured, wrapped, wider coverage, or ultra-light sport.
Use it for commuting, hiking, running, near-water days, or daily outdoor light, and notice movement, pressure, and comfort.
After your TryOn, we’ll email you a 30% off upgrade coupon for regular-priced 2nu sunglasses. Test the fit first, then choose the regular lens setup by purpose.
Size direction
Six TryOn starting points, guided by size and wearing feel.
A balanced baseline when you want the standard fit feel before comparing other options.
A starting point for a slightly smaller, closer-feeling fit.
For checking a normal-to-larger fit with a little more presence and stability.
For checking a larger fit that still feels easy for daily use.
For checking fuller coverage while staying within a normal size direction.
For checking a more flexible, sport-led wearing feel.
Compare every TryOn option by size and wearing feel first.
The lineup below keeps every TryOn sunglasses option together for easier comparison. Do not start with the regular lens setup; start with the size label, then use the image and wearing direction to choose the best first test.
TryOn sunglasses: choose your size starting point
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Fancy 试穿
Fancy 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
Impact Resistance我們的鏡框採用創新材質 FlexFoam™ 製成，具備輕盈、柔軟且極具彈性的特性，提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型偏大或偏小，也能享有穩固舒適的配戴體驗。
Free Shipping - SBI25 (Seawater Standard)
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Halo 试穿
Halo 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
Impact Resistance我們的鏡框採用創新材質 FlexFoam™ 製成，這是一種輕盈、超柔軟且極具彈性的複合材料，能提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般或偏小頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸，確保穩固舒適的配戴體驗。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型略大或較小，也能輕鬆適配。
Free Shipping - SBI25 (Seawater Standard)
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Cogs 试穿
Cogs 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
Impact Resistance我們的鏡框採用創新材質 FlexFoam™ 製成，這是一種輕盈、超柔軟且極具彈性的複合材料，能提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般或偏大頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸，確保穩固舒適的配戴體驗。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型偏大或屬於一般尺寸，也能輕鬆適配。
Free Shipping - SBI25 (Seawater Standard)
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Ovo 试穿
Ovo 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
Impact Resistance我們的鏡框採用創新材質 FlexFoam™ 製成，這是一種輕盈、超柔軟且極具彈性的複合材料，能提供卓越的舒適度與適應性。
雖然我們主要推薦給頭型偏大的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸，確保穩固舒適的配戴體驗。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，不論您的頭型屬於一般或偏大，都能輕鬆適配。
Free Shipping - SBI25 (Seawater Standard)
-
Zealot 试穿
Zealot 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
Impact Resistance我們的鏡框採用創新材質 FlexFoam™ 製成，具備輕盈、柔軟且極具彈性的特性，提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型偏大或偏小，也能享有穩固舒適的配戴體驗。
Free Shipping - SBI25 (Seawater Standard)
-
Venti Air 试穿
Venti Air 试穿
The GripLock™ design offers an innovative approach to securing sunglasses by evenly distributing their weight, rather than relying solely on the nose bridge for support. This ergonomic design ensures a stable and comfortable fit, staying securely in place even during intense exercise or heavy sweating.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
Impact Resistance- Size Reference: Size: 148-138
- Fit Type: Auto-Adjust / Unlimited Fit
- Measurements: Total Width: 148 mm
Our most adaptable series yet. Due to their open, minimalist structural design and the superior flexibility of TR90, Venti Air are virtually size-free. Whether your head is large or small, the frame automatically adjusts its tension to find the perfect grip. If you are unsure about your size or buying a gift, these are the safest and most versatile choices.
Free Shipping
Fancy 试穿
Fancy 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.
FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.
- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
我們的鏡框採用創新材質 FlexFoam™ 製成，具備輕盈、柔軟且極具彈性的特性，提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型偏大或偏小，也能享有穩固舒適的配戴體驗。
Halo 试穿
Halo 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.
FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.
- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
我們的鏡框採用創新材質 FlexFoam™ 製成，這是一種輕盈、超柔軟且極具彈性的複合材料，能提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般或偏小頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸，確保穩固舒適的配戴體驗。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型略大或較小，也能輕鬆適配。
Cogs 试穿
Cogs 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.
FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.
- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
我們的鏡框採用創新材質 FlexFoam™ 製成，這是一種輕盈、超柔軟且極具彈性的複合材料，能提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般或偏大頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸，確保穩固舒適的配戴體驗。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型偏大或屬於一般尺寸，也能輕鬆適配。
Ovo 试穿
Ovo 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.
FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.
- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
我們的鏡框採用創新材質 FlexFoam™ 製成，這是一種輕盈、超柔軟且極具彈性的複合材料，能提供卓越的舒適度與適應性。
雖然我們主要推薦給頭型偏大的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸，確保穩固舒適的配戴體驗。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，不論您的頭型屬於一般或偏大，都能輕鬆適配。
Zealot 试穿
Zealot 试穿
FlexFoam™ × FlexLock™
Engineered for movement. Built for extremes.
FlexFoam™ delivers weightless, all-day comfort that stays effortless once you’re moving. Inside, FlexLock™ features hand-adjustable temples, giving you a secure, personalised fit that holds when conditions get demanding. From trail runs to open-water rows, they stay locked in—no slipping, no distractions.
Seawater Buoyancy Index (SBI)
We rated, not guessed.
- SBI25 (Seawater Standard)
Engineered for reliable buoyancy in seawater conditions ≤ 25°C.
- FLOAT MAX (Hexachroma™ Only)
Our highest buoyancy rating, available exclusively on Hexachroma™ grade sunglasses.
Built to float in all seawater conditions — cold, rough, or unpredictable.
When losing your sunglasses isn’t an option, this is the one.
Prescription (RX) Note
Corrective lenses add weight, which means RX sunglasses will not float. Physics wins.
For seawater sessions, pair RX models with a floating strap and stay focused on the adventure ahead.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
我們的鏡框採用創新材質 FlexFoam™ 製成，具備輕盈、柔軟且極具彈性的特性，提供卓越的舒適度與貼合性。
雖然我們主要推薦給一般頭型的使用者，但 FlexFoam™ 的獨特可調性，讓它能自然貼合各種頭型尺寸。與傳統鏡框需依賴精確尺寸不同，FlexFoam™ 能靈活調整，即使您的頭型偏大或偏小，也能享有穩固舒適的配戴體驗。
Venti Air 试穿
Venti Air 试穿
The GripLock™ design offers an innovative approach to securing sunglasses by evenly distributing their weight, rather than relying solely on the nose bridge for support. This ergonomic design ensures a stable and comfortable fit, staying securely in place even during intense exercise or heavy sweating.
UV400 protection ensures that sunglasses effectively block 100% of harmful ultraviolet (UV) rays, including both UVA and UVB, up to wavelengths of 400 nanometers. This advanced level of protection helps safeguard the eyes from prolonged sun exposure, reducing the risk of conditions such as cataracts, macular degeneration, and other UV-related eye damage.
- Size Reference: Size: 148-138
- Fit Type: Auto-Adjust / Unlimited Fit
- Measurements: Total Width: 148 mm
Our most adaptable series yet. Due to their open, minimalist structural design and the superior flexibility of TR90, Venti Air are virtually size-free. Whether your head is large or small, the frame automatically adjusts its tension to find the perfect grip. If you are unsure about your size or buying a gift, these are the safest and most versatile choices.
Before you choose
TryOn sunglasses questions
What is TryOn mainly for?
TryOn is mainly for testing size, frame shape, bridge feel, temple pressure, stability, and longer-wear comfort before buying regular 2nu sunglasses online.
Does 2nu have retail stores for try-on?
2nu is online-only by design and does not operate retail stores for try-on. TryOn lets you test the same frame structure for size, comfort, and outdoor stability before buying a regular pair.
Is the TryOn frame the same as the regular product frame?
Yes. TryOn uses the same frame structure and core wearing feel as the regular product, so the fit test is meaningful.
Are TryOn lenses Hexachroma or TVO Pro?
No. TryOn includes basic UV400 lenses for outdoor fit testing. Hexachroma, TVO Pro, and prescription lenses have different clarity, polarization, and possible weight feel.
Can I use TryOn outdoors?
Yes. TryOn is meant to be worn in daily and outdoor use so you can test the fit properly. For premium lens performance, upgrade to a regular pair.
What’s in the box?
Your TryOn includes a 2nu sunglasses cloth pouch and a minimal packing box.
TryOn is packed simply by design. To keep the program practical and accessible, we use minimal packaging and focus the cost on what matters most: helping you test the fit, comfort, and real outdoor wearing feel before choosing your regular 2nu sunglasses.
Is TryOn refundable?
TryOn is offered at a very low margin to lower the barrier for fit testing, so TryOn is non-refundable.
How does the upgrade code work?
After a TryOn purchase, a one-time upgrade code is usually provided for regular-priced products. It does not apply to Outlet items or already discounted products.
Decision notes
TryOn is a practical pre-purchase decision tool.
You do not need retail markup for a brief mirror test. Judge fit through real outdoor use instead.
A performance pair needs to be worn for hours. Fit is the first question to answer.
TryOn stays with you, so it can remain a daily, car, outdoor backup, or low-pressure pair.
Send us your current frame width, face-fit concern, and main use case by WhatsApp. 2nu can help narrow the starting point between Fancy, Halo, Cogs, Ovo, Zealot, and Venti Air.
Test the fit first. Buy the regular pair with better judgment.
TryOn is for people who will actually use their sunglasses. The goal is not a quick good feeling. It is stable, comfortable fit for your own outdoor rhythm.
Back to TryOn picks