The Razzle-Dazze Midlayer and the Warming Midlayer ECO have been designed to offer protection for your dog’s key muscle groups and act as a versatile extra warming layer underneath other clothing. The materials used in both jackets is on one side soft fleece and the other technical jersey knit.With the Razzle-Dazzle Midlayer you can choose which side works best for your dog. The soft fleece lining works well with hairless dogs, or dogs who have silky or short and soft fur. The technical jersey side is good for dogs with spiky hair or easily tangled soft and long fur.The Warming Midlayer ECO has a jersey foil lining which reflects the dog’s body heat back to the dog, therefore making the dog jacket warmer than the Razzle-Dazzle Midlayer dog pullover.The Warming Midlayer ECO has been designed to use the fleece side on top and jersey foil side as the lining. The foil lining is slippery, so it works perfectly for dogs with soft and long fur. The jacket is designedfor sporty and active dogs, and to be used under a rain jacket as it’s good for the cool and slushy weather of autumn and spring.