AVAILABLE IN MEDIUM LARGE DOGS: Neck Girth 21.65"-29.53"/55cm-75cm; Chest Girth 31.5"-41.34"/80cm-105cm; Back Length 7.09"/18cm, this sleuth military backpack suitable for medium and large breeds hound. Nice choice for someone looking for a lightweight way to organize their everyday carry stuff, tools, travel essentials, first aid kits, fire starter kit, etc. If you encounter any problem while using, never hesitate to send email to us and we will make it all right for you. TWO ROOMY POCKET WITH SEMI-OPEN POCKETS: Dog camping backpack capacious side pockets can carry dog food, pet toys, water, waste disposal bags, key, phone and so on. Each side pouch comes with an exterior horizontal umbrella pocket with leather straps for strapping on extra gear, let your hands free. Demension of one pocket: 8.27 inches x 5.91 inches x 1.97 inches (length x width x height), one side pocket capacity: 1.6L. COMFORTABLE FIT EASILY --- Total 4 adjustment positions of this hiking dog packs offer a customized fit and a full range of motion. The saddlebags are designed to be stable and weight-forward. Sturdy buckles make it easy to put on and off. Whole harness is soft sponge and breathable mesh padded, full coverage design protects dog’s body and delicate belly well. Front D ring panel part through 2 legs, balanced properly, this vest won’t slide to one side and annoy the dog. NO PULL& EASY CONTROL: Front and back D-ring are sealed and sturdy, effective to control your dog with less effort, satisfied for a variety of outdoor modes. Durable top padded handle can grab the harness easily when walking in the crowd, good for lift the dog to get over barriers during adventure hiking, training and other mission. With four adjustable buckle and beneath belly pad, double assure the load bearing. All stitched parts are reinforced, providing more security and better experience. STYLISH & FUNCTIONAL: Dog hiking backpack made of high quality and super-tough TPE oxford fabric & leather trim, lightweight and convenient. The commuter doggy backpack take on classic design, durable thoughtfully constructed to keep your pet comfortable and match them anytime anywhere. Ideal for everyday walk, training, camping, hiking, travel, other outdoor trips, helping overweight pets to carry weight and exercise, also works as a canine emergency kit to hold medicines and other essentials.