Lenz Heat Sock 5.1 Toe Cap® – Regular Fit

All-day warmth, built for real winter missions.

Say goodbye to frozen toes. The Lenz Heat Sock 5.1 Toe Cap® uses the patented Toe Cap® heating element to deliver even warmth from above and below—keeping your toes comfortably warm for up to 14 hours. The flat, integrated heating element is non-bulky and blends seamlessly into the sock’s natural fit.

Designed for comfort and performance, the 5.1 features added elasticity in the calf, making it ideal for stronger calves and ensuring nothing slips during long days in boots. Padded zones protect the shin, toe, and heel, while a ring bandage locks the sock in place.

A smart blend of merino wool, silk, and functional fibers keeps the socks soft, moisture-wicking, and fast-drying—perfect for ski touring, mountaineering, or cold-weather work.

Compatible with all Lenz Body Heat System lithium packs (sold separately), the heat level can be adjusted directly on the pack or steplessly via the Lenz Heat App for precise control even under multiple layers.

Specifications

• Patented Toe Cap® heating warms toes from above and below

• Up to 14 hours of heat

• Compatible with all Lenz Body Heat System lithium packs

• Ergonomic left/right fit with ring bandage for stability

• Reinforced shin, toe, and heel padding

• Improved calf elasticity and comfort cuff to prevent slipping

• Merino-Silk blend for comfort, moisture management, and quick-drying

• Material: 30% polyester / 25% merino wool / 20% polyamide / 15% polyacrylic / 5% silk / 5% elastane

• Washable at 30 °C (laundry bag included)

• Includes: 1 pair of Heat Sock 5.1 Toe Cap® + 1 laundry bag