** REMOVABLE INSOLES ** Midfoot Lockdown - An all-new midfoot cage gives you the support you need for your run. It tightens around your foot when you lace up, keeping you locked-in with every stride. Flexible Step - A foam midsole delivers a responsive, cushioned feel. Additional flex grooves help your foot move naturally. Mesh at the forefoot provides lightweight breathability. Heel padding contours to your foot for soft comfort. Rubber outsole offers durable traction