Backpack dog carrier with removable storage pouch! Carries dogs ranging 8-40 lbs, size large fits dogs 20-23 cm from collar to base of tail. Pick is in great condition as it turned out to be too small for our dog so it's basically brand new - never took it out outside! For more info here is the product listing for the updated version of this backpack on the company's website - https://www.k9sportsack.com/products/k9-sport-sack-plus-2