? Product Description ?Hard Shell Protection ?Unlike soft bags that sag or collapse, this bike rack bag features a molded EVA shell that stays firm and shields your gear from bumps and drops. Whether commuting or exploring, its rigid structure keeps essentials protected?and it?s easy to carry with the included shoulder strap and handle,?Waterproof Protection ?This bike pannier is made of durable EVA material with a waterproof coating, making it lightweight, sturdy, and easy to clean. It includes a rain cover, keeping your belongings dry and safe in both light drizzles and heavy downpours,?Reflective Safety?This bike bag features a 4-sided reflective design that ensures maximum visibility, enhancing safety during nighttime rides. A rear strap is provided to attach taillights (taillights not included), ensuring safer cycling in low-light conditions,?10L Spacious Capacity?Our bike trunk bag offers a 10L storage capacity with two mesh inner pockets, an adjustable elastic cord on top, and a bottle holder at the rear. It provides ample space for essentials like bike tools, pumps, wallets, phones, power banks, towels, clothes, food, drinks, and bike locks, making it perfect for long rides or daily commutes,?Easy to Install?This bike rear seat bag features three straps for quick and easy attachment. It fits most bike racks, including mountain bikes, road bikes, e-bikes, hybrid bikes, and gravel bikes, making it the perfect choice for cyclists on the go. Also makes an ideal gifts for cyclists and for men who have everything ? Specifications size 10 liters color Black model R1 style Hard Shell Rear Rack Bag material Ethylene Vinyl Acetate (EVA) itemWeight 1.28 pounds productDimensions 7.0 x 7.9 x 15.4 inches ? Fast Shipping | ? Quality Guaranteed | ? Customer Support 30-Day Returns ? 100% Satisfaction