The Dog Helios Extreme Softshell Performance Fleece Dog Coat is both comfortable and insulated through the body. This high-quality coat is outer-lined with a water-resistant brushed-like softshell and reversed with polar fleece and further inner-layered with exclusively developed backshark insulation technology - a thin inner layer that is lightweight, warm, snow-resistant and impermeable -- for a complete warming system. This durable dog coat features a neck rise that extends to parts of the face covering much essential extremities with dual adjustable jawstrings and adjustable in 4 different areas. It features elastic webbing throughout the length of the jacket that further seals out the cold with reflective tubing and printing for added night visibility. This extreme softshell dog coat is available in multiple colors and sizes. General Sizing Guide: from back of neck to tail area (in inches): 8 in. : extra small, 10-12 in.: small, 14-16 in.: medium, 18-20 in.: large, 22-24 in.: extra large. Sizing Specifications: (in inches).: XS: 8.3 in. Length, 17.7 in. Chest Girth, 12.2 in. Neck Girth, SM: 11.8 in. Length, 21.7 in. Chest Girth, 13.7 in. Neck Girth, MD: 15 in. Length, 24.4 in. Chest Girth, 15.8 in. Neck Girth, LG: 18.9 in. Length, 29.9 in. Chest Girth, 16.9 in. Neck Girth, XL: 22.8 in. Length, 34.7 in. Chest Girth, 18.9 in. Neck Girth Softshell jacket that is water-resistant and insulated for the extreme outdoors and reversed with polar fleece for added warmth Features a neck rise that extends over and covers the face and neck extremities with dual adjustable jawstrings that seal out the cold Adjustable by the sleeves, neck, face with elastic webbing throughout the body for a glove-like fit Features reflective tubing and printing for added night visibility and safety High-quality dog coat, available in multiple colors and sizes