1200- and 600-denier water-resistant polyester · 27 total pockets: 17 exterior and 10 interior · Heavy-duty zipper top closure · Wide bag opening for easy access to gear · Reinforced-nylon handle and straps · Detachable, padded non-slip shoulder strap · Exterior utility loop · Inside tape- measure clip · Reinforced corners · Carhartt rivets at stress points · Bottom rails add support