A waterproof 21.8L insulated cooler bag that keeps food and drinks cold for up to 48 hours—ideal for cycling, camping, and everyday errands. Approx. 21.8L capacity; Waterproof outer shell with EPE insulated inner lining; Keeps contents cold for up to 48 hours when used with ice packs; Large top zipper opening for easy loading and access; Front zippered pocket and elastic cord webbing offer additional storage; Carry by hand or attach the adjustable, removable shoulder strap. Compatibility All Velotric Ebike Models(The Cooler Bag must be secured to a compatible front or rear basket using a Cargo Net. Basket and Cargo Net are sold separately.) Notice Cooling performance varies with the amount of ice packs used, ambient temperature, contents, and how frequently the bag is opened. Secure the bag firmly inside the basket before riding.