[No Pulling No Choking]: Has 2 strong delta-shaped metal rings in the front and back for attaching the leash, the front clip to prevent pulling and the rear for relaxed walking. And 4 adjustments on the neck and chest for easy adjustment to your dog's shape. The 2 rings are sewn with durable thick nylon webbing and reinforced box stitches and bartacks that prevent tearing even with hard pulling. [High-quality materials]: Waterproof composite fabric + double-layer elastic glue + sandwich mesh + corrugated webbing (2) Explosion-proof outer cover: natural TPR soft rubber (3) Explosion-proof movement protection: nylon material. Additionally, the material is made of a special formula that can withstand ultra-high tensile strength. [Strong tensile capacity]: Nylon sewing thread is used for sewing, and the fabric can withstand a tensile force of at least 200 kg. The finished product itself is designed to have an explosion-proof tensile force of 60 kg and a designed continuous tensile force of 90 kg. And because the fabric is overall soft, elastic and breathable, it makes pets more comfortable and breathable. [Prevent the occurrence of special situations]: If a dog suddenly accelerates and rushes, the movement of the vest can automatically lock. If you want your dog to run and play alone, you can slowly release the leash in your hand. If the leash is released instantly, in order to prevent the handle from bouncing and hitting the dog's body, the movement of the vest will also automatically lock at this time. [Easy to clean]: The washing machine is easy to use every day. And good for storage.