The Dog Helios 'Scorpion' Sporty High-Performance Free-Range Dog Harness features Dual-Layered and Air-Cushioned Micro-Mesh for Complete Comfort and Breathability, that is also Permeable and High-Performing. The Inner Belly and Upper-Chest is secured with Comfortable Polar Fleece padding that's spread apart creating a Free-Range of Mobility while placing less pressure along the chest area and friction protection. The adjustable Quick-Connecting buckles are connected to Dual-Stitched bar tackle Nylon straps that are heavy-duty for added safety and durability. Features reflective-tubed stitching for added night safety and visibility with an above-top safety-grab handle that's also great for training, with a Stainless Steel leash connecting D-ring along the top. Available in Multiple Sizes and Colors. Sizing Guide (Inches) Harness Dimensions: Small: Chest Girth: 17.71" - 20.1 Neck Circumference: 14.17" - 17.32" Medium: Chest Girth: 20.5" - 23.6" Neck Circumference: 15.75" - 19.7" Large: Chest Girth: 24.1" - 30.3" Neck Circumference: 19.68" - 24.8" Features: Outdoor Closure Type: Buckle Pet Intended For: Dog Measurements: 7.35 Height/Inches, 8.85 Width/Inches, 7 Length/Inches Base Material: 50% Nylon, 50% Polyester Care: Line Dry, Machine Wash Country of Origin: Imported