Now you can take your pet with you walking, riding, anywhere! Fully adjustable shoulder straps with torso strap allow you to have your pet on your front or back. Carrier has leg and tail openings, fully padded for comfort, and interior collar/harness strap for security. Very easy to fit, zips up both sides. Blue is medium, measures approx 11" from pet chest to tail opening. Pink is small, measures approximately 9" from chest to tail opening. Customer tested and preferred. Photo with dog shows a 10 lb dog in a medium.