Ruffwear, Swamp Cooler Dog Vest, Evaporative Cooling for Hot Weather, Compatible with Most Harnesses, Heliotrope Purple, MediumBrand: Ruffwear Color: Heliotrope Purple Features: Keep your dog cool this summer with the Swamp Cooler Vest; It provides sun protection and evaporative cooling for hot weather activities such as hiking, walking, camping, and more Weve updated the external air mesh for greater durability and water absorption; The new construction retains more water in high exposure zones so they can play and explore more To activate, simply soak in water, wear and go;