Specifications: Material: Nylon Mesh Optional Color: Black, Blue, Pink, Camouflage Optional Size: S, M, L, XL Suit for: Most sizes of the small, medium pets. Features: 1. Open top pet pouch carrier with holes in the back for legs and tail out of bag, more comfortable for your pets. 2. The middle part of the neck is widened and tightened to ensure pet bag won't feel stuffy or uncomfortable. 3. Both sides have zipper and velcro, which is convenient and adjustable，double protect, prevent your dog fall down. 4. Built-in traction clasp, can buckle on the dog's collar that safe for your dog going out. 5. Breathable mesh, lightweight, potable and durable to use. Notes: *Please compare the details and take proper measurement before purchase. *Due to the light and screen setting difference, the item's real color may be slight difference. *Please allow slight dimension difference due to different manual measurement. *Thank you for your kindly understanding. Package Includes: 1* Pet Carrier Backpack Front legs out design, easy to carry and safe to use. Nylon Mesh material, breathable and comfortable for pets. Portable and convenient, a good companion for puppy's outdoor activities. Adjustable back strap can reduce the burden.