High-concerned chemical:None Weight:100g Model Number:20L,35L,45L,60L,70L Type:Backpack Rain Cover Waterproof Material:Waterproof coating Origin:Mainland China CN:Guangdong type:unisex Function:rainproof,antifog,snowproof,dustproof Function 1:Backpack waterproof protective cover Function 2:computer waterproof protective cover Function 3:fan dustproof waterproof protective cover Function 4:motorcycle waterproof protective cover Function 5:chair dustproof waterproof protective cover Function 6:Small luggage waterproof protective cover Function 7:sport bags school bag waterproof protective cover Function 8:Shoulder Bags storage pack waterproof protective cover Multipurpose:computer, fan, motorcycle, chair, luggage, backpack Applicable scenes:for various occasions such as running, cycling, fitness Applicable scenes 1:for various traveling, mountaineering, leisure, walking, sports Applicable scenes 2:for various outdoor picnics,climbing,wading,tourism,the beach,fishing Features::Sun-resistant, rainproof, heatproof,dustproof,lightweight Perfect for::outdoor, traveling, riding, climbing etc.