Brand new backpack that I have never used, it just sat in a closet. -This durable, tactical-inspired backpack is suitable for dogs up to 25 lbs. -Interior fiberglass rods provide added structure, ensuring the pack keeps it shape. -Made from waterproof, dirt-proof, Armorsole material, which stands up to the messiness that sometimes accompanies travel. -Backpack easily converts to hand carrier when shoulder straps are stowed away. -Ventilated mesh back and side panels, softly padded compartments and zippered pockets provide maximum comfort for you and your dog.