Amazing 2-in-1 Design Dog Backpack when Saddles are Attached, Stand Alone-Harness when Saddles are detached! It's here! The Mountaineer Dog Backpack is your everyday dog day pack with excellent performance, fit, and function. It's made for dogs to efficiently carry a load, generating instant four-legged motivation to explore. The integrated harness enhances fit, pack stability and overall performance. Form-fitting saddlebags create a passive compression system that distributes the load evenly. Combined with the lightweight materials and a streamlined design, the Mountaineer Backpack is comfortable and allows your dog to carry trail necessities. It’s a great option to use as a dog day pack for day hikes and overnight adventures. Don't overload your dog, it’s recommended that your dog carry no more than 25% of its body weight in the backpack. If your dog is new to dog harnesses and backpacks, start light and work up to a heavier load as your dog gets familiar with wearing a backpack. Key features Customized fit with 5 points of adjustment Backpack and harness detach 3-point harness if you wanted to do a quick hike without the pack 100% nylon waterproof 8 stash pockets and external gear loops to carry all the essentials Front and back D-ring clips for your leash for ultimate control Handle to grab your dog quickly Low light visibility reflective trim Breathable mesh inner lining Size chart Butch is a medium for reference (dog in pictures) Size of dog for reference (approximate): Small - up to 30 lbs dogs Medium - 30 lbs to 49 lbs dogs Large - 50 lbs to 80 lbs dogs Extra Large - over 80 lbs dogs and over Be sure to measure your dog's chest and neck for the exact size!