"The dog helios 'surface' premium grip performance dog shoes are built and designed for premium mobility and breathability. These sporty dog sneakers feature a micro-mesh, suede, and nylon outer shell that are durable, flexible, breathable, and water-resistant with added reflective material by the toe area. Inner lined with both fleece and neoprene. The bottom sole features strategic rubberized micro-grips for premium traction perfect for protection against the snow, icy terrain, hiking, and hot asphalt. Geared with hook-and-loop straps that are further adjustable and reflective. These shoes are also great when worn during training or any extreme outdoor events and 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