The Liquid Force back pack is made of extra strong 600D Polyester, 1200D ballistic nylon and has a durable PVC bottom.  This bag has a roomy main compartment and laptop pocket big enough for a 17' laptop.  You will also find two padded pockets, water bottle pouch and cinch straps of any extra gear you can't fit inside.  

Size: 19" x 13" x 9"