Watersport

Conquering waves: the ultimate sunglasses for tide trekkers

With floating frame, precision, and seawater resistance lenses

LENS FOR TIDE TREKKERS

LENS FOR TIDE TREKKERS

Our precision-engineered lenses are designed to elevate your experience on the water. Featuring advanced polarization technology, they effectively reduce harsh glare from the sun reflecting off the surface, ensuring optimal clarity and comfort.Choose from two premium lens colors—Blue and Gold—each carefully crafted to enhance the natural hues of aquatic environments. These lenses add depth, contrast, and vibrancy to your surroundings, helping you stay focused and immersed. For those who demand uncompromising clarity and performance, our Hexachroma™ lenses deliver exceptional visual precision. Whether you're surfing, sailing, or paddleboarding, Hexachroma ensures your vision is as sharp as your skills.

FLOATING

FLOATING

Our FlexFoam Frame is designed to meet the demands of active lifestyles. Crafted from ultra-durable FlexFoam material, it is super lightweight, making it exceptionally comfortable and buoyant — even on seawater. The innovative FlexLock design enhances comfort while providing a secure, stay-put fit during high-intensity sports and outdoor adventures. For optimal buoyancy, choose our Hexachroma lens — our lightest option. When paired with FlexFoam, it enables a SBI (Seawater Buoyancy Index) of up to 28, delivering superior floating performance without compromising visual clarity.

SEAWATER RESISTANCE

SEAWATER RESISTANCE

Our lenses are built tough to resist the corrosive effects of seawater. Our lenses are engineered to withstand prolonged exposure to saltwater, ensuring they retain their integrity, clarity, and comfort throughout your adventures on water.

Experience Vision Redefined: The Hexachroma™ Revolution

Step into a new era of optical innovation with the Hexachroma™ lens — the ultimate high-performance solution for those who demand clarity, comfort, and color in every glance. Engineered with cutting-edge hexagonal polarized technology, these lenses go far beyond traditional glare reduction by neutralizing reflection from uneven surfaces and angled light, ensuring unparalleled visual stability wherever you roam.

Hexachroma™

Naked Eyes

Fancy™
Fancy™

HexaChroma™

The Ultimate High-Performance Sunglasses Lens on the Planet.
HEXAgonal Polarization goes beyond standard polarized lenses by reducing glare not just from flat surfaces like roads and water, but also from uneven, angled reflections — up to 45° within your visual field.
See hidden details with ease, even on tricky surfaces like drainage covers or vehicle exteriors
Enjoy enhanced clarity and reduced visual discomfort, minimizing dizziness in bright or reflective environments
Maintain screen visibility—no more blacked-out displays when checking digital maps or in-car screens
Crafted from advanced Chroma material, the lens delivers superior optical performance:
Abbe value of 52 for exceptional clarity — over 70% better than traditional polycarbonate lenses (Abbe value 30)
Shatterproof and ultra-lightweight, making your sunglasses more comfortable for all-day wear

Metonic Coating

Multi-layer scratch resistance
Seawater resistance
Sweat resistance
Oil resistance
Why do we need this? Read this

FlexFoam

Exclusively invented FlexFoam™ Materials featuring FlexLock™ design - The right balance of ergonomic design and innovative materials ensures secure and comfortable, no matter how intense the activity. (What is it?)

Weightless foam comfort

Ultra-flexible, easily adjustable by bare hands, for maximum comfort

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

SBI28

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

Size: Normal

Our frames are crafted from an innovative material called FlexFoam™ — a lightweight, ultra-flexible, and soft compound that offers exceptional comfort and adaptability.
While we recommend them primarily for individuals with normal head sizes, FlexFoam™ unique adjustability ensures a secure and comfortable fit for a wide range of head shapes and sizes. Unlike traditional frames that require precise measurements, FlexFoam™ naturally conforms to your contours — whether your head is slightly smaller or larger than average.

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per
Buy Now
Fancy™
Fancy™

Metonic Coating

Multi-layer scratch resistance
Seawater resistance
Sweat resistance
Oil resistance
Why do we need this? Read this

FlexFoam

Exclusively invented FlexFoam™ Materials featuring FlexLock™ design - The right balance of ergonomic design and innovative materials ensures secure and comfortable, no matter how intense the activity. (What is it?)

Weightless foam comfort

Ultra-flexible, easily adjustable by bare hands, for maximum comfort

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

Polarized

Polarized lenses are specially designed to reduce glare and improve visual clarity, particularly in bright outdoor conditions. They contain a chemical filter that aligns light waves, allowing only vertically oriented light to pass through while blocking horizontally reflected glare from surfaces like water, roads, and snow.
Benefits of Polarized Lenses:
Reduced glare: Helps minimize reflections from flat surfaces, improving visibility.
Enhanced contrast: Makes objects appear sharper and clearer.
Less eye strain: Reduces discomfort caused by excessive brightness.
Better vision in bright environments: Ideal for outdoor activities like fishing, boating, and driving.

Size: Normal

Our frames are crafted from an innovative material called FlexFoam™ — a lightweight, ultra-flexible, and soft compound that offers exceptional comfort and adaptability.
While we recommend them primarily for individuals with normal head sizes, FlexFoam™ unique adjustability ensures a secure and comfortable fit for a wide range of head shapes and sizes. Unlike traditional frames that require precise measurements, FlexFoam™ naturally conforms to your contours — whether your head is slightly smaller or larger than average.

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per
Buy Now

Fancy™

HexaChroma™

Metonic Coating

FlexFoam

SBI28

Size: Normal

$189.00 USD

Buy Now

Fancy™

Metonic Coating

FlexFoam

Polarized

Size: Normal

$135.00 USD

Buy Now

Halo™
Halo™

HexaChroma™

The Ultimate High-Performance Sunglasses Lens on the Planet.
HEXAgonal Polarization goes beyond standard polarized lenses by reducing glare not just from flat surfaces like roads and water, but also from uneven, angled reflections — up to 45° within your visual field.
See hidden details with ease, even on tricky surfaces like drainage covers or vehicle exteriors
Enjoy enhanced clarity and reduced visual discomfort, minimizing dizziness in bright or reflective environments
Maintain screen visibility—no more blacked-out displays when checking digital maps or in-car screens
Crafted from advanced Chroma material, the lens delivers superior optical performance:
Abbe value of 52 for exceptional clarity — over 70% better than traditional polycarbonate lenses (Abbe value 30)
Shatterproof and ultra-lightweight, making your sunglasses more comfortable for all-day wear

Metonic Coating

Multi-layer scratch resistance
Seawater resistance
Sweat resistance
Oil resistance
Why do we need this? Read this

FlexFoam

Exclusively invented FlexFoam™ Materials featuring FlexLock™ design - The right balance of ergonomic design and innovative materials ensures secure and comfortable, no matter how intense the activity. (What is it?)

Weightless foam comfort

Ultra-flexible, easily adjustable by bare hands, for maximum comfort

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

SBI28

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

Normal/Smaller

Our frames are crafted from an innovative material called FlexFoam™ — a lightweight, ultra-flexible, and soft compound that offers exceptional comfort and adaptability.
While we recommend them primarily for individuals with normal or smaller head sizes, FlexFoam™ unique adjustability ensures a secure and comfortable fit for a wide range of head shapes and sizes. Unlike traditional frames that require precise measurements, FlexFoam™ naturally conforms to your contours — whether your head is smaller or slightly larger than average.

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per

Regular price $189.00 USD

Regular price Sale price $189.00 USD
Unit price per
Buy Now
Halo™
Halo™

Metonic Coating

Multi-layer scratch resistance
Seawater resistance
Sweat resistance
Oil resistance
Why do we need this? Read this

FlexFoam

Exclusively invented FlexFoam™ Materials featuring FlexLock™ design - The right balance of ergonomic design and innovative materials ensures secure and comfortable, no matter how intense the activity. (What is it?)

Weightless foam comfort

Ultra-flexible, easily adjustable by bare hands, for maximum comfort

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

Polarized

Polarized lenses are specially designed to reduce glare and improve visual clarity, particularly in bright outdoor conditions. They contain a chemical filter that aligns light waves, allowing only vertically oriented light to pass through while blocking horizontally reflected glare from surfaces like water, roads, and snow.
Benefits of Polarized Lenses:
Reduced glare: Helps minimize reflections from flat surfaces, improving visibility.
Enhanced contrast: Makes objects appear sharper and clearer.
Less eye strain: Reduces discomfort caused by excessive brightness.
Better vision in bright environments: Ideal for outdoor activities like fishing, boating, and driving.

Normal/Smaller

Our frames are crafted from an innovative material called FlexFoam™ — a lightweight, ultra-flexible, and soft compound that offers exceptional comfort and adaptability.
While we recommend them primarily for individuals with normal or smaller head sizes, FlexFoam™ unique adjustability ensures a secure and comfortable fit for a wide range of head shapes and sizes. Unlike traditional frames that require precise measurements, FlexFoam™ naturally conforms to your contours — whether your head is smaller or slightly larger than average.

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per
Buy Now

Halo™

HexaChroma™

Metonic Coating

FlexFoam

SBI28

Normal/Smaller

$189.00 USD

Buy Now

Halo™

Metonic Coating

FlexFoam

Polarized

Normal/Smaller

$135.00 USD

Buy Now

Cogs™
Cogs™

Metonic Coating

Multi-layer scratch resistance
Seawater resistance
Sweat resistance
Oil resistance
Why do we need this? Read this

FlexFoam

Exclusively invented FlexFoam™ Materials featuring FlexLock™ design - The right balance of ergonomic design and innovative materials ensures secure and comfortable, no matter how intense the activity. (What is it?)

Weightless foam comfort

Ultra-flexible, easily adjustable by bare hands, for maximum comfort

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

Polarized

Polarized lenses are specially designed to reduce glare and improve visual clarity, particularly in bright outdoor conditions. They contain a chemical filter that aligns light waves, allowing only vertically oriented light to pass through while blocking horizontally reflected glare from surfaces like water, roads, and snow.
Benefits of Polarized Lenses:
Reduced glare: Helps minimize reflections from flat surfaces, improving visibility.
Enhanced contrast: Makes objects appear sharper and clearer.
Less eye strain: Reduces discomfort caused by excessive brightness.
Better vision in bright environments: Ideal for outdoor activities like fishing, boating, and driving.

Normal/Larger

Our frames are crafted from an innovative material called FlexFoam™ — a lightweight, ultra-flexible, and soft compound that offers exceptional comfort and adaptability.
While we recommend them primarily for individuals with normal or larger head sizes, FlexFoam™ unique adjustability ensures a secure and comfortable fit for a wide range of head shapes and sizes. Unlike traditional frames that require precise measurements, FlexFoam™ naturally conforms to your contours — whether your head is normal or large.

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per
Buy Now

Cogs™

Metonic Coating

FlexFoam

Polarized

Normal/Larger

$135.00 USD

Buy Now

Ovo™
Ovo™

Metonic Coating

Multi-layer scratch resistance
Seawater resistance
Sweat resistance
Oil resistance
Why do we need this? Read this

FlexFoam

Exclusively invented FlexFoam™ Materials featuring FlexLock™ design - The right balance of ergonomic design and innovative materials ensures secure and comfortable, no matter how intense the activity. (What is it?)

Weightless foam comfort

Ultra-flexible, easily adjustable by bare hands, for maximum comfort

Seawater Buoyancy Index (SBI) indicates the maximum allowable seawater temperature for different products.
SBI25: Seawater temperature must be ≤ 25°C
SBI28: Seawater temperature must be ≤ 28°C
If no specific SBI is provided, the default temperature requirement is at or below 25°C.

Polarized

Polarized lenses are specially designed to reduce glare and improve visual clarity, particularly in bright outdoor conditions. They contain a chemical filter that aligns light waves, allowing only vertically oriented light to pass through while blocking horizontally reflected glare from surfaces like water, roads, and snow.
Benefits of Polarized Lenses:
Reduced glare: Helps minimize reflections from flat surfaces, improving visibility.
Enhanced contrast: Makes objects appear sharper and clearer.
Less eye strain: Reduces discomfort caused by excessive brightness.
Better vision in bright environments: Ideal for outdoor activities like fishing, boating, and driving.

Size: Larger

Our frames are crafted from an innovative material called FlexFoam™ — a lightweight, ultra-flexible, and soft compound that offers exceptional comfort and adaptability.
While we recommend them primarily for individuals with larger head sizes, FlexFoam™ unique adjustability ensures a secure and comfortable fit for a wide range of head shapes and sizes. Unlike traditional frames that require precise measurements, FlexFoam™ naturally conforms to your contours — whether your head is normal or large.

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per

Regular price $135.00 USD

Regular price Sale price $135.00 USD
Unit price per
Buy Now

Ovo™

Metonic Coating

FlexFoam

Polarized

Size: Larger

$135.00 USD

Buy Now

Jenny Leung, Hong Kong Rower

2023 Asian Games Silver Medal | 2022 Asian Champ

"Very light and comfortable, unlike other brands that may make my head hurt from tightness. Also 2nu sunglasses have a great style that I really like!"

ig: @jenny_1029

Jason Breen, "The Whale Guy"

"Fantastic sunnies, right for water sports. Great saltwater resistance coatings on them. One of my pair actually floats! Super comfy, super lightweight!"

ig: @jasonthejaw

Looking for the perfect sunglasses for your all-around sports commitment and head size? Try this...

Sunglasses Selector

Enjoy your water sports with peace of mind

Lifetime Guarantee

We stand by the quality of every 2nu product with unmatched warranty commitments. All of our performance sunglasses have a lifetime guarantee on manufacturing faults and accidental damage.

14 Day Returns

If you’re not satisfied with your sunglasses, either it’s not fit for your face, or you don’t like the style, or whatever reason, send it back to us within 14 days of placing your order and we will reimburse you to the original payment method, as long as the product(s) meet the conditions set out in our return policy.

Free Express Shipping

Free express shipping across Australia, New Zealand, Hong Kong, and Singapore.

View delivery timeframe

Customize Your Performance Sunglasses

Pick for favourite colours of frame and lenses, frame material, and lens types.

Enter your prescription

Item added to your cart

Conquering waves: the ultimate sunglasses for tide trekkers

With floating frame, precision, and seawater resistance lenses

Experience Vision Redefined: The Hexachroma™ Revolution

Fancy™

Fancy™

Fancy™

Fancy™

Fancy™

Fancy™

Fancy™

Fancy™

Halo™

Halo™

Halo™

Halo™

Halo™

Halo™

Halo™

Halo™

Cogs™

Cogs™

Cogs™

Cogs™

Ovo™

Ovo™

Ovo™

Ovo™

Jenny Leung, Hong Kong Rower

Jason Breen, "The Whale Guy"

Looking for the perfect sunglasses for your all-around sports commitment and head size? Try this...

Enjoy your water sports with peace of mind

Lifetime Guarantee

14 Day Returns

Free Express Shipping

Customize Your Performance Sunglasses