SEPARATE WEIGHT BLOCKS DESIGN – This dog weighted vest only includes the harness itself, all weight ingots are sold separately. You can match 0.5lb weight blocks according to your dog’s training stage. Start training with an empty vest to let your dog adapt gradually, add weights evenly on both sides for balanced load, effectively avoid joint strain and injury. DOG MUSCLE BUILDING & WEIGHT LOSS HARNESS – Increase exercise resistance to burn extra calories, ideal for overweight dogs to lose weight safely. Evenly distributed pressure slows down pulling and sudden rushing during walking. It strengthens dogs’ chest, leg and back muscles, perfectly fit working breeds like Pitbull, German Shepherd, Husky, Malinois. REINFORCED DURABLE NYLON & MULTIPLE SCENARIOS – Made of thick wear-resistant nylon with double stitching, equipped with sturdy metal D-ring and double prong buckle, withstand up to 1000 lbs pulling force. Great for daily walking, strength training, weight pull sled cart sports; replace weights with foam floats when swimming. 5 FULL SIZES FIT ALL ADULT DOGS – Available in XS/S/M/L/XL, fit waist girth from 19.5 to 43 inches, match dog weight 25–156 lbs. Each size comes with different numbers of independent snap weight pockets (16–38 pockets). Multi-adjustable waist straps, easy to adjust tightness for a better fit on your dog's body. SAFE TRAINING REMINDERS – Only suitable for healthy adult dogs over 18 months old. NOT for puppies, senior dogs or dogs with joint, hip and leg injuries. Always supervise your dog while wearing the vest. Fill weight blocks symmetrically; use empty vest for running and jumping activities only. Walktime tactical weighted dog vest is an adjustable fitness harness for dog muscle building, weight loss and anti-pull training, great for Pitbull, German Shepherd, Husky and large working dogs. It curbs pulling and boosts your dog’s stamina. Built with thick tear-proof nylon, reinforced seams and sturdy metal D-ring, it supports sled pulling training. Symmetric snap pockets let you add weights step by step. Note: Vest only, weight blocks sold separately. Let your dog adapt to an empty vest first, then add 0.5lb weights evenly to prevent joint damage. It helps overweight dogs burn calories and build full-body muscle. 5 sizes XS-XL fit 25–156 lbs dogs with 19.5”–43” waist. Adjustable straps offer comfortable friction-free fit. For healthy dogs over 18 months; unsuitable for puppies, seniors or joint-injured dogs. Perfect for daily walks, fat loss, muscle training and service dog fitness. Keywords：weighted dog vest, tactical dog harness, no pull dog harness, dog workout vest, dog fitness harness, dog muscle training harness, dog weight loss harness, dog exercise weighted vest, dog weight pulling harness, pitbull training vest, husky fitness vest