Charm &Magic Large Dog Travel Carrier Backpack Legs Out Front Pet Bag Carrier Material: Nylon Size: S Breast 15" Fit for 3.3lbs-5.5lbs M Breast 16.5" Fit for 5.5lbs-9.3lbs L Breast 19.7" Fit for 9.3lbs-15.4lbs XL Breast 23.6" Fit for 15.4lbs-20.9lbs" Holds your pets easily and free your hand. The adjustable straps and various sizes works fine with most size, easy to keep pets with you for walking or weekend adventure. Soft and breathable net bag makes your pet comfortable.