Men’s cotton trunks designed for everyday comfort with a closer fit and structured feel. A reliable option for daily wear, featuring a keyhole fly opening.
Browse cotton trunks below or explore the full Men’s Underwear range to find different fits.
Save 10% when you buy any 2 or more packs.
More Packs. Better Value
Designed for a close, supportive fit, these cotton keyhole trunks offer all-day comfort with a structured feel. The shorter leg helps prevent riding up, while breathable cotton keeps them comfortable, and a functional keyhole opening adds everyday practicality.
Shop Men's Underwear by Type
Browse Men’s Bamboo Boxer Shorts, Men’s Bamboo T-shirts, complete your rotation with Men's Everyday Socks or view the full range of Men’s Underwear.
Need help choosing? See our Underwear Types Guide.
Build Your Rotation
Most people just top up. Spairs is built for stocking up.
A proper rotation means having enough pairs to get through the week without running out.
Add a couple of packs, and you’re sorted for the week.
Built for Multibuy
Don't stop at one pack.
Add 2 or more packs and save 10%.
• Pay less per pair
• Fewer repeat orders
• One delivery — sorted
Do it once. Stock up properly.
1. CHOOSE →
Start with your first pack
2. ADD →
Another pack (or two)
3. UNLOCK →
10% Multibuy saving
4. STOCK UP
More pairs, lower price