The Dog Helios 'Arctic Blast' Full Bodied Winter 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 Outershell is further Waterproof treated and the Inner-shell is composed of Anti-Static warm Polar Fleece that hugs the body. Geared with a Removable and Adjustable Hood that extends over the Head and Ears with a Jawstring that seals coverage for head-extremity protection. The Arctic Blast Dog Jacket features bunched stitching that conforms to all legs and an Adjustable Waistband jawstring for a premium fit around the chest area. Additionally this coat features Reflective tubing and printing for night visibility, and elastic banding across the length of the body for a perfectly tailored fit that also provides growth room for prolonged usage. Completed with Waterproof above-neck Dual-sided zippers for Leash attachment while sealing out the frigid air. Great during those Frost Bite conditions. Available in Multiple Sizes and Colors. General 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. Sizing Specifications: (In Inches). XS: 8.3" Length, 17.7" Chest Girth, 12.2" Neck Girth SM: 11.8" Length, 21.7" Chest Girth, 13.7" Neck Girth MD: 15" Length, 24.4" Chest Girth, 15.8" Neck Girth LG: 18.9" Length, 29.9" Chest Girth, 16.9" Neck Girth XL: 22.8" Length, 34.7" Chest Girth, 18.9" Neck Girth