Material: Double-sided aluminum foil Size: 23*21*1cm / 8.97"*8.19"*0.39" Color: as shown in picture 1. Waterproof design: This bicycle seat cover is made of waterproof material, effectively preventing rain from soaking the seat, making your ride more comfortable. 2. Heat insulation and warmth: The seat cover has heat insulation and warmth functions, effectively isolating the temperature difference between the seat and the body, providing you with a warmer riding experience. 3. Improved comfort: The seat cover has a soft, skin-friendly feature that provides excellent comfort, allowing you to ride for long periods without feeling fatigued. 4. One lasting and wear-resistant: The material is sturdy, long-lasting and resistant to wear, protecting the original seat and extending its lifespan. 5. Versatile design: Not only does it have waterproof and warmth functions, but it also has a simple and stylish appearance design, combining fashion and practicality, making your ride more stylish. Package includes:1pcs Bicycle seat cover