Material: 600D Polyester w/ Heavy Vinyl Backing. It is lightweight and durable??</br>Size: 20.5*10.6*13 inch (L*W*H??When bag is open and stretched out to full size)</br>Structure : U-shape main zippered compartment?? Two Large Side Zippered Pockets?? Full-size Front Zippered Pocket. Top Handles?? Adjustable Non-slip Padded Shoulder Strap.</br>Carry what you need : Take all your essential stuff with you. Large compartment to fit your Hiking Boots?? Flashlight?? Shoes?? Socks?? Rain Coat?? Underwear?? Pan