1. Breathable Mesh Fabric: With mesh fabric on the front and backside, the pet carrier is breathable, ventilated and no pungent smell, always keeps your pets feel free in it. .2. Head Out Design: Front hole allows your pets head out for fresh air and watching outside world, so that it wont be boring in the pet backpack. .3. Interior Drawstring: Interior drawstring with buckle can be tightened up to prevent your pet from jumping out or hurting itself, effectively ensures the pets safety. .4. Adjustable Wide Straps: The adjustable wide padded straps help to reduce your shoulder pressure while the extendable straps with buckle keep the backpack more stable. .5. Functional Pockets: There are 2 mesh pockets around the dog carrier, ideal to store your small belongings like phone, keys, tissue, etc., free your hands to get more interactions with your pet. .