Lenz Heat Sock 4.1 toe cap + Heat Pack 2.0 (USB-C) SetsHeat socks 4. 1 toe cap The sewn in heating element in the heat sock 4. 1 toe cap provides warmth and keeps your feet warm. The toes are warmed from both above and below. The fit in the calf area is ideal thanks to the increased elasticity. The socks are therefore also perfectly suitable for stronger calves and thanks to the comfort cuff nothing slips. The socks are knitted left right and promise a perfect fit thanks to the ring bandage. Padded