【Size of Dog Carrying Backpack】Size S:13"H×11"L×6"W(the height of pet's chin to foot when sitting: 7-10 inch，pet max width from front feet to back feet when sitting: 7 inch, recommended weight for pets: ≤ 6 lbs). Please measure your pet before purchasing 【Breathable Mesh & Head out Design】: Be made of sturdy breathable mesh. This dog carrier backpack is breathable, comfortable, ventilated. Head out design helps dogs to breathe freely, visible, easily communicating with you 【2 Ways of Wearing】: Dog carrier backpacks can be used in front or on the back. 2side pockets, 1 front zipper pocket for storing dog supplies. Dog chest carrier with neck drawstring design, easy to open and close 【Economical Designs】: Adjustable hip and chest buckles strap on shoulder straps, removable base plate on bottom, provide support, stability and security. Thick shoulder straps and back added comfort 【Security Leash with Clamp】: Dog front carrier with short built-in security leash and clamp can connect with pet collar, prevent pet get out and make your lovely pet safe dog carrier backpack