Electric Heated Insoles Built-in Battery Thermal USB Rechargeable Heating Shoe Insoels for Winter Hunting Climbing Skiing

【Rapid heating, no fear -122℉】: heated foot insoles are heated by the forefoot, which heats up quickly to High Temperature, which is very suitable for skiing adventure, outdoor work, hunting, fishing, running, cycling, Skiing,hiking, etc. 【Large capacity battery-cycling heating】: 7.4V 2000mAh rechargeable lithium polymer battery Operated , cycle charging and heating to (40°C-65°C), battery life can reach 3.5-7 hours. 【3-Gear Temperature control】Effectively saving battery life, suitable for Winter outdoor and indoor activities, ensuring dexterity, maximum comfort, and protecting your feet. 【Cut to the right size]: This Thermal Insoles provides you with a trimable area with Multiple Sizes , Unisex,so you can customize them to get the perfect fit.

Size S,footlength:22.5-25cm Size L,footlength:25.5-28cm