You’re Kidding, Aren’t Ya?
At Big Fish Undies, we’re bloody serious about making the best undies in Australia and just like you, we recon its important not to take life too seriously, and keep it real.
No fake claims about being “ethically this, conscious that, or woke certified. Just real undies for real Aussie blokes — designed for comfort, built for action, and inspired by fishing, adventure, and a healthy dose of politically incorrect humour.
Tri-Zone Technology
Aussies may have a laid back approach to life, — but when it comes to your undies,
performance matters.
That’s why Big Fish Undies packs serious tech beneath the cool designs.
Zone 1 – Main Fabric:
A premium 50s long-fibre brushed Bamboo Viscose (190–200 GSM) blended with 8% genuine Lycra® (not the cheap generic stuff).
The result? Lightweight, soft, super-stretchy fabric with elite moisture-wicking, long life, and next-level comfort.
Treated with Silver Ion antibacterial protection and a Cool-Touch finish to keep you fresh and cool all day.
Zone 2 – Inner Lining:
A breathable knit bamboo-silk-Lycra blend infused with silver ions and Cool-Touch tech. It’s smooth, supportive, and breathable — with that kiss-of-an-angel silk feel where it counts.
Zone 3 – Anti-Chafe Panel:
A super-stretch bamboo weave with the same silver ion and Cool-Touch treatments. Strategically placed to fight sweat, heat, and chafing — even on the hottest days or longest runs.
Work hard, play hard, stay cool!
Oi, Oi, Oi Designed in Byron Bay, made in an Australian owned factory with the absolute finest underwear fabric the world has to offer.