Amazon.com : TIMBUK2 Muttmover Luxe Backpack, Jet Black, Medium : Pet Supplies
Texsens Pet Carrier Backpack- Extra Large Dog Backpack Carrier with Window Curtain for Medium Large Fat Cats Puppies Rabbits Up to 33 Lbs, Ventilated Design for Travel, Hiking, Outdoor (Black) - Walmart.com
Used Timbuk2 MuttMover Pack | REI Co-op
Pet Carrier Dog backpack - Timbuk2 Muttmover Luxe Backpack, Medium - general for sale - by owner - craigslist