Sherpa SPORT SACK Messenger/Courier Style Small Pet Dog Cat Kitten Ferret Rabbit Carrier. Color-green Size Small 15"L x 7.25"W x 9.5"H (Pets Up to 6 Pounds) Airline/Subway/Rail Approved Attached leash to keep pet secure For small pets under 6lbs, please mesure your pet before ordering. Mesh panels for ventilation, top entry, includes shoulder stap airline approved fits under seats, meets safety for on board plane travel reflective trim for saftey