The Ruffwear Climate Changer Jacket regulates your furry friend's temperature to keep them cozy out in the cold. This polyester fleece layer is designed for ease of movement and quick-drying Performance so they can play outside for longer. Tail wags and all. Reflective trim keeps them visible in low light situations, and the side zipper extends the full length of the jacket for easy on and off. Features of the Ruffwear Climate Changer Jacket Warm, everyday fleece dog jacket for cold, clear conditions Provides warmth without bulk in. Sleevedin. style provides full coverage for maximum warmth and full range of motion Can be layered under other Ruffwear coats Zippered closure for High-Performance Fit Low-light visibility with reflective trim and light loop for attaching the beacon