Fabric Characteristics - Topcrown bike cover uses 210D fabric combined with a hydrophobic coating, PU waterproof coating, and anti-UV coating, three core technologies to ensure excellent protection for bicycles. The fabric just has 80 GSM (g/m²), but its multi-layered design enables it to withstand water pressure of up to 3000mmH₂O, striking an excellent balance in water resistance, sturdiness, and lightweight | Large Size - XXXL Size for 3 bikes - 87'' L x 43'' W x 47'' H, easily covering 2-3 bike up to 29", providing comprehensive protection for your bike, enabling you to easily handle rain, sunlight, UV rays, dust, dirt, and other pollutants | Detail Design - The elastic band at the bottom, along with the front and rear wheel buckles, allows you to secure the bike cover more effectively, providing better wind resistance. The woven nylon lock hole offers better protection for the paint, while metal lock holes can easily scratch the surface | Innovative Design - Unlike the outdated designs of traditional bicycle covers, Topcrown boldly incorporates green elements. The integration of green accents, such as the pull tabs, stitching, brand logo, and lock hole with the black fabric, creates a stylish and simple overall appearance that aligns well with our brand's commitment to promoting environmental conservation | Easy Carry and Store - We provide a storage bag (12'' L x 9'' W) to help you better organize the bicycle cover. Zipper closure, convenient and durable