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 outdoor dog boots feature extendable stitched socks great for proper circulation with dual supportive hook-and-loop straps that are further adjustable and reflective. These Dog Helios boots are built-to-last. Dog Helios boots are 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"