How to choose the puppy carrier size: Size S: 13.3"(L)*7.5"(W)*13.8"(H), the dog front carrier is suitable for up to 5 lbs; Tips please measure the length of your puppy and weigh together for accurate reference. 
Neck Hole Design: With the design of neck hole window, the dog carrier backpack enables your puppy to keep head stretched so you can care and interact with it anytime and anywhere. The adjustable neck drawstring makes pets comfier when in use.
Safety & Adjustable: The puppy carrying bag is equipped with adjustable safety rope inside, which can stabilize the pet and prevent it from accidentally falling off or breaking free from the bag. Besides, the elastic rope in front of the bag is allowed to adjust according to the size of the puppy.
Breathable Material: The breathable mesh fabric makes the dog not feel stuffy and uncomfortable in the backpack. The thick sponge holds the dog to make it sit inside stably and reduce the burden of owner. Back filling is ergonomic and achieves ventilation and heat dissipation effect.
Functional Pockets: There are two pockets on both sides of the pet dog carrier backpack, convenient to store your belongings like mobile phone, key, card, tissue, etc., and taking them easily and simply.
NEW ITEM IN ORIGINAL PACKAGE.
FULLY FUNCTIONAL AND COMPLETE.