Smartwool Everyday Athletic Striped Crew Socks Brand_Real They use WINDSTOPPER® Product Technology

They use WINDSTOPPER® Product Technology by GORE-TEX LABS and a soft fleece lining to strike the ideal balance between flexible windproof protection and advanced moisture management

This 20L top-loading pack is constructed with ultra-tough

Spring-assisted flip-top chug spout

while the removable felt liners offer next-level warmth

* Brake width: Optional (90 or 105 or 115 mm)

Smartwool Everyday Athletic Striped Crew Socks Brand_Real They use WINDSTOPPER® Product TechnologyClassic style meets daily comfort in our Everyday Athletic Striped Crew Socks. The extra stretch comfort fit system is ideal for larger feet and ankles, or a less compressive fit for everyone else. With a Virtually Seamless toe, mesh zones for breathability, and a reinforced sole for added durability, these are the go to pairs for effortless, everyday style and comfort.