Features: - Vest is activated by soaking it in water, wringing it out, then placing on your dog - Light-colored outer layer reflects heat and solar radiation - Comfortable liner transfers cooling to dog's fur - Vest style provides good coverage for maximum shade - Side-release buckles allow easy on/off - Reflective trim helps keep your dog visible in low light - Integrated leash portal allows leash attachment when the Swamp Cooler is worn over a compatible Ruffwear harness (sold separately) Details: - Size medium is for a dog with 27-32" girth (measure around the widest part of the rib cage) Condition: - Pilling on fabric from washing (see attached photos) - No visible stains - Buckles work like new