The Brooks Men's Glycerin 19 GTS Running Shoes provide confidence and stability for one smooth ride. They are designed with an engineered mesh with 3D Fit Print upper to increase breathability and improve drainage for a distraction-free fit. The Glycerin has great rugged protection with the DNA LOFT cushionthat protects your foot from rocks and roots in every stride. They feature stability that allows your foot to adapt to any terrain and a high-quality rubber outsole to give added grip every time. TheBrooks Men's Glycerin 19 GTS Running Shoes are the best choice for hard and solid surfaces.