Medium sized K9 Sport Sack for the active dog owner. Perfect for taking your small dog or puppy out on longer hikes than they would normally be able to do. I used it 2-3 times before my dog became too heavy for me to carry so it’s almost new! Check out the manufacturer’s web site for sizing … Ideal for a small dog or med sized puppy. https://www.k9sportsack.ca/products/air-2 Also included, a treat training pouch with 2 additional compartments, poo bag dispenser, belt clip and shoulder strap