【Medium Dog Molle Vest】: Neck Girth: 17-24 inch, Chest Girth: 22-34 inch, Belly Length: 22-34 inch, Back Length: 12 inch. Ideal for Medium Breeds such as Boston Terriers, Dachshunds, Heelers, Bulldogs, Boxers, Puggles, Australian Shepherds. A professional working dog vest for service, police, or military dogs, but also suitable for outdoor companion dogs. Please refer to our size chart, make sure match up your dog's measurement, Do not choose the size base on dog's weight or guess 【Molle System】: Equipped on both sides for pouches, water bottles, and tactical dog gear. Multiple Hook & Loop Panels for morale patches and badges to showcase your dog’s personality. A wide range of use for personal service, law enforcement, or outdoor recreation. The package contains a dog harness, and 10 pieces of dog patches, such as Service dog, do not pet, in training, emotional support and service dog in training, enough quantity for you to decorate the dog’s vest harness. 【2x Metal Shoulder Buckles】: Two Metal Shoulder Buckles can bear great pulling force, ensuring your dog is safely harnessed during training, working, and any other occasion. 4x Plastic Buckle( 250lb proof-loading) on chest and belly position. This dog harness is made with military grade materials and reinforced stitching. Well padded in every pressure load point to protect your dog, while the breathable air mesh keeps your dog ventilated and comfortable 【3 D Rings for Leash Clip】: This military service dog vest features 3 stainless steel D-rings gives the handler/owner various leash attachment options - One Anti-Pull Front Clip to control dogs on walks without choking or harming them; One heavy duty D-Ring near dog's neck for casual walking with short leash, another one on the rear of harness for hikes with long leash 【Double Padded Sturdy Handle】: The double handles are great for you to assist your dog in any position, it is much safer than pulling at a collar that is around the neck.