Designed for style and comfort, this multi-layer winter jacket for dogs features a waterproof shell, a fleece and cotton insulated middle layer and a heat-reflective polyester lining for optimal warmth. SMARTER HEAT REFLECTIVE DESIGN - Perfect for cold winter days and cool rainy days, this waterproof dog jacket has a self-heating heat reflective lining that retains your pup’s own body heat to create superior warmth and protection. High-back collar with leash opening - Perfect for long walks in the park or trips around the block, our winter dog jacket offers better mobility and works well with dog collars and leashes because the covered leash opening keeps rain and water out. Full Coverage, Adjustable Chest Strap - In addition to reflective strips for night walking, our warm dog jackets offer full-length back coverage, elastic straps around the back legs to keep them in place, and chest straps for maximum comfort.