The Helios Octane Softshell Neoprene Satin Reflective Dog Jacket is Inner-lined with exclusively developed Blackshark Technology. This innovative fabric is lightweight, waterproof, windproof, snowproof, breathable, cold-repellent, impermeable and tear-resistant. Features a waterproof-coated neoprene-satin outer shell that has high elastic properties. Additionally, the outer shell is 3M reflective for added safety during night strolls. Great for the high-octane dog. The interior is composed at anti-static thick polar fleece for added comfortability and breathability. Features dual hook and loop straps for convenient on/off access. This dog coat also features accented embroidery and a print on the outer shell. Get outdoors with Helios Dog! Sizing Guide: (From back of neck to tail area) Extra Small: 8"  Small: 10-12" Medium: 14-16" Large: 18-20" Extra Large: 22-24" Features: Moisture Wicking Pet Intended For: Dog Base Material: 80% Polyester, 20% Neoprene Care: Wipe Clean, Spot Clean Country of Origin: Imported