Features: Experience all day warmth with our heating shoe insoles featuring advanced thermal technology, delivering continuous heat without external power sources through breathable fabric. Engineered with thin, flexible fabric, these light weight heated shoe inserts pad provide cushioning comfort while eliminating bulkiness common in traditional insulated insoles. Fit on various footwears, such as boot, leather shoe, athletic shoe, sneakers. Ideal for outdoor enthusiasts, and workers requiring prolonged standing/walking in freezing condition like construction sites or winter sports. Optimized for cold weather activities including skiing, snowboarding, mountaineering, hiking, camping and daily winter commutes, ensuring foot comfort in temperatures as low as 20°C ( 4°F). The light weight construction combines breathable properties with moisture wicking air flowing, maintaining warmth throughout 8+ hours of active use. Specifications: Component: Fabric Color: As Shown Men Shoe Inserts Size: Approx. 25x8cm/9.84x3.15in Women Shoe Inserts Size: Approx. 23.5x7.5cm/9.25x2.95in Weight: Approx. 770g, 830g Package Includes: 10Pairs Heated Shoe Inserts Pad note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color