Feature: 1.Side zippers and Velcro provide double protection, and a built-in safety hook can be attached to your pet's collar to prevent accidental drops. 2.Elastic neck design, leg and tail openings are designed with soft wrap-around edges for added comfort to your pet. 3.The three-point seat belt design, coupled with the zipper and snap buttons on both sides, provides double protection to prevent pets from accidentally jumping out of the pack, completely freeing hands. 4.Durable Breathable Material,made of canvas material, which is lightweight, soft, wear-resistant and resistant to tearing and breaking.Breathable mesh material keeps your pet cooler, more comfortable and improves the wearing experience. Description: Material: Nylon Color: Pink, Red, Blue, Black, Leopard, Camouflage,Rainbow Size: S, M, L, XL Bag size Chest Back Length Pet weight S 28*18cm 28-30cm 25-28cm 2.5kg(Chihuahua,Puppy) M 32*20cm 24-43cm 29-34cm 2.5-3.5kg(Hiromi,Teddy) L 38*23cm 36-50cm 31-38cm 3.5-6.5kg（Sherila,Adult teddy,Pekingese） XL 41*24cm 43-65cm 39-43cm 5.5-9kg Notes: 1. please see the size for purchase (due to manual measurement, please allow 1-3CM difference) 2. All products are real shot. Due to different monitors, the color may be slightly off, please understand! How to use: 1. Unzip the zipper and Velcro on one side and thread the pet's limbs and tail through the holes. 2. After wearing, close the zipper and fasten the Velcro. 3. Adjust the shoulder straps to a comfortable position. 4. Insert the buckle. Quick and easy to put on, the pet cage can be worn on your front or back.