The Extreme-Neoprene Barking Armor Soft Shell Neoprene Dog Coat features belly and neck Velcro adjustable enclosures. Designed and Engineered for multiple usages. Great for dogs in need of warmth during the winter and yet breathable during the Spring and Summer. Useful for active dogs in need of a rash guard for outdoor water play and great for diabetic dogs in need of weight loss and pets in operation recovery. Available in Multiple Sizes and Colors. Sizing Guide: From Back of Neck to Tail area ("In" Inches) 8 in. : EXTRA SMALL 10-12 in.: SMALL 14-16 in.: MEDIUM 18-20 in.: LARGE Neoprene Shell Outer Fabric. Adjustable Compression for dogs in need of weight loss UV Resistant and Flexible Can be worn as a Wetsuit or Rash Guard and any other outdoor athletic purposes Great for Dogs in recovery of operation Keeps your dog warm during the winter and cool during the summer