Features: Constantly Comfort Experiencemail: Produced from a blend of fleece and synthetic fibers, these insoles offer soft support to relieve foot fatigue from prolonged walking otherwise standing, perfect for commuters and adventurers. Against Slip Stability Plannumber: The framework aluminum broadsword layer enhances resistance, preventing the insoles from slipping inside footwear, exemplary for running, gym, and other sports tasks. Warmth and Insulatparticlemail: The aluminum broadsword layer furnishes excellent warm insulation, blocking ground cold and maintaining feet warm, especially suitable for winter outdoor tasks. Customizable Fitermeterror: Developed for easy trimming to fit various shoe measurements and varieties, ensuring a perfect suitable everything from casual to professional sports footwear. Environmental K series Permanentermeterror: Constructed from tall quality, environmental aware materials, these insoles is constructed for long permanent use, reducing the need for frequent replacements. Specifications: Component: wool, synthetic fiber, aluminum foil film. Size: 29.8x10cm/11.73x3.94inch. Color: khaki, gray. Quantity: 1pair Package Includes: Square aluminum broadsword insole × 1 double note: Please allow a little error on the size due to manual measurement. The color might exist slightly difference due to different displays.