Backpack Flap with classic lobster clasp closure with buckle Snap closure at the top One main compartment Padded 13" laptop sleeve with sleeve Side compressions with snap closure Adjustable shoulder straps Strap carrying handle Material: 100% polyester with polyurethane coating Lining: 100% polyester Waterproof rating: W3 Waterproof protection from light rain Waterproofness of the fabric in the water column: 8000 mm