Superior design and quality workmanship make Jandd dog packs the finest on the market. The leading edge of our dog pack is cut back at a slight angle to allow the dog more freedom of movement and reduce hang-ups. Next, we eliminated all vertical webbing that could become entangled on branches and other obstacles, and put a low-profile compression strap on the rear edge of the bag. The main body of the pack is 14-oz. Supertex vinyl scrim material; we also added a Cordura® top with a storm-flapped heavy-duty zipper, and lined the entire bag for outrageous durability and abrasion-resistance. For the suspension, we chose 2" polypropylene webbing for its soft hand and wickability; there are three straps across the bag and one at the chest, which serves as a low-profile compression strap. There are also two bottom straps with side squeeze buckles for easy adjustment-one for the chest and the other for the belly. The Kelev dog packs also feature a 1/2" layer of reticulated foam and a ventilated mesh lining on the interior side of the packs to cushion the load and help prevent overheating. A D-ring on the top of the bags allows a leash to be attached. (Note: It is not recommended to carry more than 10% of the dog's weight unless approved by the dog's veterinarian).