Solid Colours

ENGINEERED FIT

Innovative pattern design giving unrivalled fit, comfort, support. Tri zone design.

Over a year in development with Master Patternmakers we redesigned underwear from the ground up!

Ergonomic front pouch – Lift, support and room! No gimmicks, no circulating cutting pouches – just beautifully contoured and precisely cut premium fabrics you can feel!

Anti Chaffe inner leg, and additional leg length on larger sizes for the perfect anti ride fit!

Tri zone panels for support, comfort, anti sweat and antibacterial all day freshness.  

ULTRA PREMIUM FABRIC

Industry Leading fabric specification with unrivalled comfort and life – luxe feel industrial strength.

Ultra high thread count, premium Eucalyptus Lyocell (anti sweat and long life), and a premium 5 X long life Lycra that doesn’t bag out and provides years of stretch free wear!

We rejected every single dodgy fabric sample, and developed our own proprietary combination. 50s Ultra fine long threads – all other Australian brands are using poorer quality 40s or 30s lower thread count with short fibres Weave – a proprietary weave that allows airflow yet maintains structure for years of washes 190 GSM – the optimum weight for wear, comfort and structure whilst maintaining airflow 628W Lycra – Literally the only brand using an ultra premium branded Elastane. All the other brands are using inferior specification and generic elastane which bags out and often only lasts less than a year. Big Fish Undies keep their shape and elasticity wash after wash, year after year.

While all the big brands have downgraded to inferior fabrics to maximise profits, we know Ausie guys will be blown away at the premium performance and 5x life of big Fish Undies! 

Now you know why big fish Undies feel so good on, and last so well!

5 X LONGER LIFE

Industry leading ultra premium Lycra 268W, high 50s thread count and a proprietary air weave Big Fish outperform

Go online and you will see bad review after bad review for all the big name underwear brands. You’re not stupid, and im sure you’ve noticed underwear doesn’t last long anymore! Wanna know why? The big brands are using inferior quality fabric specifications so you have to buy new pairs more often costing you way more in the long run and making them more money!

We rejected every single dodgy fabric sample, and developed our own proprietary combination. 50s Ultra fine long threads – all other Australian brands are using poorer quality 40s or 30s lower thread count with short fibres Weave – a proprietary weave that allows airflow yet maintains structure for years of washes 190 GSM – the optimum weight for wear, comfort and structure whilst maintaining airflow 628W Lycra – Literally the only brand using an ultra premium branded Elastane. All the other brands are using inferior specification and generic elastane which bags out and often only lasts less than a year. Big Fish Undies keep their shape and elasticity wash after wash, year after year.

Now you know why big fish Undies feel so good on, and last so well!

NATURAL BAMBOO FIBRES

Natural sustainably sourced bamboo fibres provide water wicking, soft, hypoallergenic wear, year after year

Bamboo is naturally water wicking, cool hollow fibres with hypoallergenic properties.

ERGONOMIC POUCH

Innovative ergonomic pouch that acts like a push up bra for your balls. Lift and support, as well as comfort and room to move.

WATER WICKING

Natural fibre, and a proprietary air weave provide a passive dry feel twice that of regular fabrics, on the hottest of days.     Extensive testing of optimum fabric and weave to maximise water wicking and dry feel.    

SILVER IONS ANTIBACTERIAL

Next gen Silver Ions Antibacterial treatment, to radically enhance the natural fibres existing  antibacterial properties.   This treatment is hypoallergenic, keeps you fresh, and greatly minimises sweat rashes and chaffing problems.  

ANTI CHAFFE INNER LEG

The inner leg panel fabric is extremely wear resistant, breathable, has a Silver Ion Antibacterial Next Gen treatment.  This hypoallergenic next gen fabric treatment ensures you always stay fresh, and reduces rash and chaffing. 

All our sizes have the perfect leg length for comfort and our XL and XXL sizes have strategically longer leg length to minimise chaffing and ride.

AIR WEAVE FOR COOLING AIRFLOW

Proprietary fabric weaves developed to provide maximum cool under pressure allowing you to breath, no matter how hard youre working!

Stay cool, stay dry, stay fresh, day and night!

4WAY ULTRA STRETCH AND RETURN

By combining a proprietary weave, ultra fine long fibres, and Lycra 862W ultra premium elastane Big Fish undies offer best in class stretch and return. Day after day, year after year.

PROUDLYAUSIE! BYRON BAY BASED

Designed in Byron Bay, made with premium Eucalyptus natural fibre fabric.   We scoured the world for the finest fabric and designed the ultimate underwear for hot Ausie lifestyle! Weather you’re in the Iron ore dust in Karratha, the humidity of the East Alligator build up, or fixing steel on a gold Coast High rise construction site, Big Fish undies are made by Aussies for Aussies to give you best in class comfort and wear.  Oi…… Oi…….Oi

Cool MAX Mineral Temp regulator treatment

In another Australian first, we have added a pioneering Dupont mineral additive to dissipate heat away from your skin. Its an industry first and backed by the trusted Dupont name

Its hot out there boys, stay cool! Designed in Byron Bay, made in Australian owned factory. We scoured the world for the finest fabric and designed the ultimate underwear for hot Ausie lifestyle! We fish hard, surf, work in the hot Ausie sun and have an uncompromising attitude toward doing things right!