The Dog Helios Traverse Premium Grip High-Ankle Outdoor Dog Boots are built and designed to outperform. Composed of a dual breathable brushed Nylon blended fabrics that are Durable, Flexible, Breathable and Water-Resistant with added reflective embedded stitching by the toe area. The bottom sole features Rubberized micro-grips for Premium traction perfect for the snow or icy floors, hiking and protects paws against the hot asphalt. Perfect for dogs in need of high-ankle support, elder dogs and dogs in recovery. These dog shoes feature extendable stitched socks great for proper circulation with dual supportive hook-and-loop straps that are further adjustable and reflective. These shoes are built-to-last. Available in Multiple Sizes and Colors. Sizing Measurements Guide: (In Inches): Paw Length x Paw Width XS: Length: 1.2 - 2.5" Width: 1.75" SM: Length: 1.6 - 2.6" Width: 2.0" MD: Length: 2.0 - 2.8" Width: 2.3" LG: Length: 2.4 - 3.0" Width: 2.5" XL: Length: 2.8 - 3.2" Width: 2.8"