The Dog Helios ® Thunder-crackle Adjustable and Reflective Full-Body Waded Winter Dog Jacket is Inner-lined with exclusively developed Blackshark Technology, this innovative fabric is Lightweight, Waterproof, Windproof, Snow proof, Breathable, Cold-Repellent, Impermeable and Tear Resistant. Meant to withstand the harshest weather conditions possible, whether you're caught in a Blizzard, Typhoon, Hurricane or Rainstorm this is the premiere premium plush protective Dog Jacket of it's kind. The Exterior shell is composed of a Plush-Wadded high Poly-Filled exterior that is Double-Waterproofed, Windproof, Breathable, Tear proof fabric and features surrounded 3M Reflective lining for emergency visibility. The interior features a thick layer of Extremely High-Quality warm-protective and thick Anti-Static fleece which is extremely breathable and offers a fantastic ventilation system. Perfect for High-Altitude Mountaineering or any extreme activities. These Dog Jackets feature adjustable straps by every leg and features auto-adjustable built-in inner tubed lining. Additionally, this dog coat features above-top zippers for dog placement and Velcro enclosures that completely prevents any wind from entering while preventing any pulling of the dog's hair. Features a leash slit above the neck area and accented Embroidery and a print on the Outer shell. Get Outdoors with Dog Helios! Available in Multiple Colors and Sizes. Sizing Guide - From Back of Neck to Tail area ("In" Inches) 8" - EXTRA SMALL 10-12" - SMALL 14-16" - MEDIUM 18-20" - LARGE 22-24" - EXTRA LARGE