The Most Affordable Waterproof System on the Planet. Aqua Quest "Sil" Pack Covers Convert Any Old Backpack into Reliable Waterproof Gear.With 3 Sizes to Choose From, these Lightweight Sil Covers are Perfect for a Wide Range of Pouches, Packs, Bags, Luggage, Panniers & Bike Bags, And Anything Requiring Protection from the Elements.Extremely Lightweight & Compressible for Easy and Convenient Storage.All Aqua Quest Gear is Designed, Licensed & Tested in Canada"s West Coast. We Know You Will be as Satisfied as We Are.