"Keep It Cool Large Mat & Cooling Top COMBO"This combo of an Orange Aloha Cooling Top and large Green Hawaiian Sun Cooling Mat will keep your small dog cool in the heat. PLUS! They get a FREE toy with this cool set! Panels of cooling beads in the vest and the blanket turn to gel when soaked in water for just 1-2 minutes- then dry! The cooling gel stays a cool 65º for 3-7 days! They can use these at the beach, pool side, or days in the park to stay cool and calm. Adjustable vest style has velcro at the neck and belly. You may keep it in the refrigerator between wearings however! <<< LISTEN >>> Just pick the Cooling Top size you'd like with your Large Hawaiian Sun Cooling Mat - 23.5" x 16.5". FREE TOY, THAT'S A COOL DEAL!Girths: 8-11", 12-15", 16-19" and 20-23"