Easy-access side zips, velcro elastic top closure dog carrier backpack is designed for carrying small medium dogs/cats, we highly recommend for puppies less than to 20 LB (The larger dog may bring too much weight-bearing for the owner). Please DO measure your pets and choose according to the size chart. Open top pet pouch carrier with legs out and tail out design let your pet feel comfortable and safe while keeping your hands free it also can be used as a pet backpack, you can bring along your dogs, doggy, or puppy to anywhere in anytime, like camping, hiking, travel etc. A hands-free pet carrier can be worn on your front side or your backside material:oxford fabric + soft mesh padding+ metal buckle pet carrier backpack has comfortable carrier strap, it will reduce stress from the weight when you carry your dog on your shoulders, pet carrier backpack has velcro, zipper and grid on both side, also has hole for tail out, make your pet comfortable, also make it easier to use for you. pet supplies help you making your pet safe and comfortable. Great quality for treating your pet as family.