Waterproof UA Storm technology keeps your belongings dry. Solid PU coated bottom for added durability and abrasion resistance. Rear Laptop Sleeve Compartment and Layout - Holds up to a 15" MacBook Pro or similarly sized laptop. Large zippered main compartment and front pocket for valuables. Adjustable shoulder straps and top handle for multiple carrying methods. Separate compartment for shoes or laundry. Water bottle pocket on the right side. Dimensions full: 30.9 cm W x 48 cm H x 17 cm L. Volume: 30 l. There are no discounts on the selected The-Rock collection. Colour: Dark blue Storage: main pocket, inside pocket, side pocket Laptop pocket: 15" diagonal Dimensions: 31 cm x 48 cm x 17 cm Volume: 30 l A4 format: fits Specification: adjustable strap length Technology: UA Storm1 - A special coating that repels water without compromising breathability. Material: 100% polyester