The Helios Altitude Mountaineer Wrap Hook and Loop Protective Waterproof Dog Coat is Inner-lined with exclusively developed Blackshark Technology. This innovative fabric is lightweight, waterproof, windproof, snowproof, breathable, cold-repellent, impermeable and tear resistant. The Helios outer shell is furthermore completely polyurethane coated above the tougher-grade polyester with three additional layers of wear and tear resistant protection. Water completely wicks off similar to a lotus leaf effect. This dog coat features a polar fleece interior that comfortably hugs the dogs body for added warmth and superior comfort. Features a special wrap-over connecting hook and loop enclosures which wrap around both the belly and chest areas for easier on and off accessibility. Features a leash slit hole by the neck area. Furthermore, this dog jacket features 3M Reflective lining for added safety during night walks. This dog coat features accented embroidery and a print on the outer shell. Get outdoors with Helios Dog! Sizing Guide: From back of neck to tail area