Explore Outfitters Waterproof Outdoor Hiking Backpack With Internal Frame (Daypack) 40L Best Back Pack for Camping, Backpacking, Travel, Sport 40L With Expandable Design - Loosen the side straps to pack more gear. Two side zippered pockets and one mesh pocket provide additional extra storage and organization options. Mesh padded hip belt with zipper provide quick access to essentials. Heavy Duty Water-Resistant Ripstop Polyester - Made from high density and water resistant material is made strong and will keep your items dry in the rain. This high quality fabric pack is built to last. Hydration Reservoir and Water Bladder Compatible. Pack has a large inside storage area designed to hold your hydration needs. Perfect for men, women, boys and girls, hikers, youth, and travelers who love exploring the outdoors. Much more affordable compared to REI and other top brands for sale and online. Great gift! 100% SATISFACTION GUARANTEED - We guarantee you will LOVE the Explore Outfitters 40l hiking backpack, or we'll give you your money back.