Description Designed both for people who participate in a range of athletic activities or people just using in daily life where they experience sweat and fatigue in the feet . Our insoles will effectively reduce odor and absorb sweat, making your feet breathable all day. Features - Color: Black. - Material: Bamboo Charcoal. - Size 35: About 22.5x5x1cm; 3.95x1.97x0.39Inches. - Size 36: About 23x5x1cm; 9.06x1.97x0.39Inches. - Size 37: About 23.5x5x1cm; 9.25x1.97x0.39Inches.. - Size 38: About 24x5x1cm; 9.45x1.97x0.39Inches.. - Size 39: About 24.5x5x1cm; 9.65x1.97x0.39Inches.. - Size 40: About 25x5x1cm; 9.84x1.97x0.39Inches.. - Made of material, durable and practical, long service life and easy to use. - Designed both for people who participate in a range of athletic activities or people just using in daily life. - Our insoles will effectively reduce odor and absorb sweat, making your feet breathable all day. - Tight thread, firm edge, smooth thread, wear-resistant. - Fresh aroma, which make the feet feel breathable and comfortable.