The Lenz heat sock 4.1 toe cap® delivers cutting-edge warmth directly to your toes – keeping your feet toasty on the coldest ski days. The integrated heating element, in combination with the optional LITHIUM PACK RCB 1200, provides consistent warmth from above and below the toes.

A high-stretch calf zone ensures a perfect fit – even for wider calves – while the comfort cuff with press studs securely holds the battery pack. Designed with left/right anatomical shape, a supporting ring bandage, and reinforced padding at the heel and toe, these socks offer comfort, durability, and a secure fit. The blend of natural merino wool and technical fibers effectively manages moisture and keeps feet warm and dry.

Control the heat via buttons on the lithium pack or easily through the free smartphone app – for customized comfort at your fingertips.