100% Natural Cotton Canvas with breathable cotton mesh. 2 zipper pouches for storing food, water bottles, treats or gear. D-ring for use as a harness. Nylon straps are adjustable, similar to human backpack straps and have a plastic connector. Padded side pieces to cover the plastic connector to ensure comfort.

• Small --------- Dogs up to 20 lb
• Medium ----- Dogs 20 - 50 lb
• Large -------- Dogs 50-80 lb
• X-Large ----- Dogs over 80 lb