Mangrove &reg; 15L / 30L Handy Lightweight Sports Backpack for Camping Hiking Mountain Climbing and Travel High quality material, durable hand strap, metal buckles, reinforced leather top-loading handle and sturdy YKK zipper pulls with closed-seam system Elastic water bottle pocket keeps your water close at hand Front zippered pocket with accessory slots (for utensils and smartphones, etc.) Large main compartment separates layers to store up to a 14-inch laptop , which can well protect such electronic equipments Mesh padded adjustable shoulder straps, easy to adjust the length and lock firmly.