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 for carrying a laptop, tablet, valuables & more; Soft-lined laptop sleeve holds up to 15" sized laptop; Dual-direction extra deep water bottle pocket & two exterior valuables pockets; 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: 12.4" W x 10.5" H x 23" L;