20"x16"x4" UA Storm technology delivers an element-battling, highly water-resistant finish Constructed with extremely tough & durable fabric Tough, abrasion-resistant PU coated bottom panel Soft lined, padded tablet sleeve & TSA friendly laptop sleeve Water-repellent front valuables pocket to keep your stuff safe at all times Adjustable, padded, HeatGear shoulder straps for total comfort Front chest strap buckles shut to keep backpack snug Side-zip water bottle pocket & 2 side buckle organization pockets Large, vinyl lined front pocket with sturdy buckle Hidden side-zip pocket & a ton of molle webbing for additional attachment points