500D CORDURA ® ripstop polyester Rain Defender ® durable water repellent (DWR) Large main compartment with zippered mesh pocket Dedicated 15-inch laptop sleeve and tablet sleeve Contour-fit shoulder straps with FastDry ® sweat-wicking technology Adjustable, hideaway sternum strap Padded air mesh back panel Adjustable, hideaway padded waist belt 2 exterior mesh pockets Fleece-lined eyewear compartment Front zippered organization compartment Hydration-tube-and-bladder compatible (tube and bladder not included) Hook-n-haul system allows for attachments Carhartt label sewn on front bottom Capacity: 25L Dimensions: 20.25'h x 12'w x 12'l; Approx. 1,526 cubic inches Note: Bags not intended for use by children 12 and under