100% Polyester; UA Storm technology delivers an element-battling, highly water-repellent finish; Padded airmesh back panel & PU-coated body fabric for ultimate durability & breathability; Large vented main compartment with internal organization; Soft-lined laptop sleev holds up to 13" sized laptop; Dual-direction extra deep water bottle pocket & one exterior valuables pocket; Gusseted laundry and shoe pocket placed at bottom; Welded hypalon modern molle webbing for additional attachment points; Works as both a backpack & duffle with removable duffle strap; Product Size: 10.6" W x 9.4" H x 21.7" L