NWT [Tactical Mesh Design]: Breathable and quick to dry for all seasons, mesh design with the same tactical style and durability. Rugged 1000D nylon offering great dirt/water/abrasion resistance. [No Pull D-ring]: 3 stainless steel D-rings at the front chest and back for training, short and long leashes, with 4 UTX-Duraflex quick-release buckles and 6 fully adjustable straps. [Molle/Handles]: Looped MOLLE panel on both sides for MOLLE compatible add-ons such as treat totes, poop bag pouches, service dog kits, military patches and name tags. 2 padded grab handles with reinforced stitchin. Useful for getting in/out of a car, immediate canine control in crowded areas or with other dogs, etc. [Size Chart]: Please choose right size base on size chart, Size XS(Neck 11"-17", Chest Girth 15"-22"); Size S(Neck 14"-20", Chest Girth 20"-27"); Size M(Neck 16"-23", Chest Girth 24"-32", Back 15"); Size L(Neck 18"-25", Chest 27"-36", Back 17"); Size XL(Neck 20"-29", Chest 31"-40", Back 19");