describe Material: polyester + nylon webbing Soft and light. Perfect for everyday walking, jogging, training and all outdoor leisure activities. Your dog can walk freely in it and will love it The chest pressure is even and safe, preventing pulling and suffocation, and protecting the dog's delicate trachea and neck pain-free. Reflective strips: With reflective strips, your dogs and cats can see in low light conditions. Improve the safety of walking at night. size: Size S: Bust 43cm - 53cm Size M: Bust 54cm - 63cm Size L: Bust 64cm - 78cm Size XL: Bust 79cm - 94cm Reflective design, safe to travel at night This pet chest strap is designed with reflective logos and reflective stripes to effectively avoid night light problems. If your pet is lost, you can find your lost pet more easily, making your night travel safer. Safe and comfortable pet chest strap with breathable mesh. Decompression night reflections look refined. Soft and comfortable. 3D Cutting 3D Stabilizing Structure Three-dimensional overall structure, easy to carry. The chest is connected by four webbing straps, which adapts to the dog-shaped design, balances the stress area of the pet, does not press the neck, and can be worn for a long time without harming the pet. Breathable material, comfortable and safe draw distance, good grip. Can withstand strong tension, not easy to break, exquisite details, perfect quality. Polyester mesh material, comfortable and breathable The pet chest strap is made of polyester mesh fabric, the fabric is soft to the touch, will not attract pet hair, and will not harm your pet's skin. The delicate and comfortable mesh is non-sticky and very breathable. This product is designed with Velcro, which can be fine-tuned and has strong adhesion. It adapts easily to the dog's size and doesn't fall off easily. It is safer and provides better protection for your pet.