Be sure to measure your pet and choose according to the size chart. Thoughtful details: Outward legs and tail design keep your pet safe and comfortable; hook and loop, zipper and elastic openings allow you to comfortably place your dog inside; quick release buckles at the ends of the shoulder straps ensure that only one is needed Quick installation by hand. Customer experience comes first: We always stand behind our customers and do our best to meet your needs. We've made several upgrades, such as thickening the shoulder pad foam, using an upgraded breathable mesh and polyester material to make the harness more durable and comfortable. TWO WEARING WAYS: The hands-free pet cage can be worn on your front or back if you wish, it brings you closer and increases your pet's security when you are carrying your cat or dog. At the same time, the thickened sponge pad helps reduce the burden on the shoulders. ENJOY TRAVELING WITH YOUR PET: This backpack carrier is light and portable, you can use it to carry a small dog or cat for biking, hiking, camping, going for a walk or meeting friends. It allows owners to have more adventures with their adorable pets, and more importantly, it's also a great photo prop for fun photos to share on a daily basis. Tips: Due to manual measurement, please allow for slight differences in size. There may be slight color difference due to different monitors.