509 - Tactical Sock Accessory size:SM A full-height gaiter built with

A full-height gaiter built with three-layer waterproof breathable GORE-TEX fabric

Air-balanced first stage diaphragm delivers constant and effortless airflow unaffected by depth

Engineered for alpine conditions with improved stiffness

Just use the unit’s microSD™ card slot to load the compatible mapping options you want

Thick and durable

509 - Tactical Sock Accessory size:SM A full-height gaiter built withDescription Our pro team's top choice for high intensity days, the 509 Tactical Sock offers a lightweight feel that's perfect for milder conditions and riders who run hot. Zonal terry cushioning combines with added support around the arch and Achilles to drastically improve all day comfort. Full calf length stays up inside your boots. The synthetic blend with nylon and LYCRA breathes and dries fast while resisting abrasion for performance that lasts.