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Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.
The original DeFeet sock, the Aireator has been consistently upgraded and remains the gold standard of cycling socks.
Affordable and incredibly durable, Aireator's are the most popular cycling sock the world has ever known.
DeFeet Aireator mesh for superior breathability and comfort, the first sock to incorporate this type of open-mesh construction.
Eco-friendly: Made from recycled water bottles in North Carolina, USA.
Great for running, hiking, and on the bike
Machine wash cold, tumble dry low. No bleach, softeners, or harsh detergents.
60% Nylon, 39% Recycled Polyester, 1% Lycra
We are a Seattle, WA based outdoor gear store with a mission to make climbing, backpacking, skiing & mountaineering accessible and enjoyable for everyone.
© 2026, Master Store
