Bullet Points: 1.Soft Cushioning Design: Featuring EVA elastic material, these USB heated insoles ensure excellent cushioning and comfort, offering an optimal wearing experience when spending extended periods outdoors in winter conditions 2.Adaptable Warmth Technology: Featuring a cuttable format, these heated insoles adjust effortlessly to match your shoe size, offering a broad heating zone with balanced thermal coverage reaching highs of 50C/122F, perfect for frosty mornings or extended hours outdoors 3.Heat-Conducting Layer: Heated insoles for men adopt a heat-conducting layer that efficiently distributes warmth, protecting your feet from cold weather while ensuring comfort during outdoor activities like hiking or working in chilly environments 4.Winter Warmth Simplified: These heated boot insoles feature a built-in USB charging port, enabling users to maintain consistent foot warmth effortlessly in winter conditions, offering practical charging convenience that enhances comfort whether walking to work or exploring snowy trails 5.Outdoor Activity Must-Have: Heated insoles ensure warmth during skiing, walking, camping, and snowboarding, providing an adaptable solution for cold weather adventures while improving focus and stamina for sports like fishing through consistent thermal support Winter heated shoe inserts provide reliable thermal comfort for cold weather activities. Designed with advanced heating technology, these inserts ensure your feet stay warm during outdoor adventures such as fishing, camping, walking, sports, and skiing. The cuttable feature allows you to tailor the size for a perfect fit in any footwear. Powered by USB, they offer convenience and consistent performance wherever you go. Whether braving chilly climates or enjoying winter pursuits, these inserts deliver soothing warmth to your feet, enhancing comfort and endurance. Experience worry-free exploration with winter heated shoe inserts crafted to support your active lifestyle. Specification Product name: Electric heating insoles Material: EVA Size: about 28x9x0.2cm/11.03x3.55x0.08 inches Weight: 100g Instruction: 1. When trimming, please be careful not to cut the heating wires. 2. After washing, allow the product to air dry completely. Ensure the product is dry before use. Plug in the power to enjoy warmth. List Heating insoles x2 pieces Data cable x1