Active Dog Coat - GreenMade in Cornwall, our Active Dog Coats perform in all conditions whilst allowing for unrestricted movement. We believe they are the best coat for active dogs. Designed to keep your dog warm in the harshest environments without compromising movement We tested a number of materials and soon established that close fitting neoprene offered the best qualities for an active dog coat. Commonly used in wetsuits it provides great insulation even when wet.