Main Features:Multifunctional designPadded separate laptop compartment at the back ( fits 15.6 inches laptop ); side pockets for water bottle and umbrella; earphone hole designed for you to enjoy music; elastic band on right shoulder strap for sunglasses; the front section has lots of pockets and pouches to fit all kinds of stuff.Ergonomic designThickened shoulder straps・ handle and back are designed to balance the pressure on your spine when you use it for heavy loads.High-quality materialMade of 210D nylon and polyester・ durable・ lightweight・ water resistant and breathable.Anti-theft designHidden pocket in back・ and 2-zipper layers design・ better to keep your valuables hidden.