Size chart

FREE AUSSIE BIRDS 3-PACK
VALUED AT$53.85
Add $100 more to unlock your free gift
Spend $100 or more and we'll add the 3-pack to your order for free. While stocks last.
Books in Homes Australia is dedicated to giving children living in remote, disadvantaged and low socioeconomic communities access to books of their own. Through schools and community programs, they help foster a love of reading and give more Australian children the opportunity to build their own home libraries.
By purchasing the Bin Chicken Men’s Trunk, 10% of proceeds will be donated to Books in Homes Australia.
Material: 95% Cotton, 5% Elastane
More About Books in Homes Australia:
Books in Homes Australia provides new books to children and families who may otherwise have limited access to quality reading materials. Their programs empower children to choose books they genuinely want to read and, importantly, keep them to enjoy at home.
With your support, we can help put more books into the hands of Aussie kids, encourage a lifelong love of reading and help build brighter futures, one book at a time.
Orders are typically processed and shipped within 1–3 business days.
FREE standard shipping on orders over $70 across Australia, New Zealand and the USA.
Australia
Standard delivery: 2–7 business days after dispatch
New Zealand
Standard delivery: 5–10 business days after dispatch
USA
Standard delivery: 7–14 business days after dispatch
Returns
For hygiene reasons, underwear can't be returned. Please check our size guide before ordering.
Our underwear is made from 95% cotton and 5% elastane.
We recommend washing in cold water with like colours.

At Sydney Sock Project, we believe in trunks that do more than just cover your bits.
With every pair of underwear purchased you're contributing to meaningful causes. We are dedicated to supporting charities and organisations that strive to make a difference in our communities.
Why Choose Sydney Sock Project?
Our Impact: With your support, we've made over 400,000 donations to those in need, ranging from providing essential educational supplies to disadvantaged children to supporting vital research in various health initiatives.
Premium Quality: Our underwear is crafted with meticulous attention to detail, using high-quality materials to ensure comfort and durability.
Customer Community: Join a community of 250,000+ happy customers who have chosen Sydney Sock Project. Experience the satisfaction of not just buying underwear but being part of a movement that blends fashion with purpose.
See above our size guide.
For hygiene reasons, underwear can't be returned. Please check our size guide before ordering to find the right fit.
AUS/NZ
Standard Shipping: 2-7 days
Express Shipping: 1-2 days
Rest of World
Standard Shipping: 7-14 days
Express Shipping: 3-5 days