Used Nike boxer briefs
They smell like sweaty athletes underwear but still very comfortable
Buy and sell with athletes everywhere.
Join more than 1 million athletes buying and selling on SidelineSwap. Save up to 70% on quality new and used gear, sold by athletes just like you.
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Every purchase is protected by our buyer guarantee. If you don’t receive your item as advertised, we’ll provide a full refund.
Quick shipping and tracking.
Most orders ship via USPS Priority Mail (1-3 business days once the item is shipped by the seller). We provide sellers with a prepaid shipping label, and buyers receive tracking notifications until the item arrives at your doorstep.
Save money. Save the planet.
When you save big on high-quality used gear, you’re also keeping more gear on the field and out of a landfill.
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Sellers receive feedback on every transaction, so you can feel confident before you purchase. Easily message the seller with questions about your item at any time.
