Fit & Design Crafted from a soft and breathable cotton-polyester blend Cushioned footbed and seamless toe ensure all-day comfort Y-stitched heel and honeycomb arch support offer a secure and supportive fit Extra-long staple cotton ensures durability Technology Stay-up technology keeps the socks from slipping Additional Details One pair purchased = one pair donated Machine washable. Socks from the Bombas brand.. Ready to give it a try? Visit www.dickssportinggoods.com to learn more, explore additional product details, and check availability at a DICK'S Sporting Goods store near you. Place your order online for fast shipping or in-store pickup - DICK'S makes it simple to find exactly what you need..