Darn Tough - Crew, Athletic Socks - Men's dry bag PillowLock system prevents your Sea

PillowLock system prevents your Sea to Summit Aeros Pillow from slipping

and more effectively wick moisture

Prefer an off-the-back hydration solution instead of an over-the-shoulder pack

Protects – Keep feet dry and extends the life of footwear by protecting it from moisture and water

Darn Tough - Crew, Athletic Socks - Men's dry bag PillowLock system prevents your SeaDarn Tough Crew socks will help you take your game to the next level! With a cushioned sole for extra protection and breathable fabrics for extra comfort, these socks will keep your feet feeling great all day long. And best of all? They're made to never quit. So get ready to sock it to 'em!