Info directly below is cut and pasted from the internet. Despite best efforts, may not be entirely accurate. Exact Models can sometimes be difficult to determine and features/details may vary by production year. Listing may include stock photos. I do not specialize in any particular product so feel free to correct me.
Lightweight and comfortable: Durable Saddlebag for dogs is lightweight, making sure your dog is comfortable; 2-sided dog pack provides enough space for all Fido's essentials, including food, treats, Doggie bags, first aid supplies and travel bowls
Integrated harness: backpack for dogs can also be used as a harness; features rear mounted leash hook to attach dog walking leash when the dog needs to be on leash, can also be used as bottle opener; dog backpack also features 2 side pockets for extra storage
Reflective and has padded handle: dog hiking backpack has large handle for extra control over your dog or to assist him over obstacles or water; reflective trim on the dog pack ensures safety From multiple angles so your pup is visible in the dark
Size and fit: Baxter size is for dogs 30-85 pounds and fits 3. 75 litres, Big Baxter size is for dogs 50-110 pounds and fits 7.5 litres

Fits 30-85 Lb Pups