100% Polyester UA Storm technology delivers an element battling highly water repellent finish Soft lined laptop sleeve holds up to 13" sized laptop Large vented main compartment with internal organization Dual direction extra deep water bottle pocket & one exterior valuables pocket Works as both a backpack & duffle with removable duffle strap Welded Hypalon modern molle webbing for additional attachment points Padded air mesh back panel & PU coated body fabric for ultimate durability & breathability Gusseted laundry and shoe pocket placed at bottom