100% polyester; UA Storm technology delivers an element- battling, highly water-resistant & stain resistant finish ; Breathable mesh back panel & adjustable, HeatGear® shoulder straps; Adjustable, removable UA Strap Clip™ on shoulder; Soft-lined laptop sleeve—holds up to 15"; Water-Repellent front valuables pocket; Large, gusseted front laundry/shoe pocket at bottom of bag; Two side water bottle pockets ; Top grab-handle; Two D-Rings & molle webbing on shoulder straps for additional attachment points; Dimensions: 6.3"W x 20.1"H x 12.6"L; Cubic Volume: 29 L