All those who are neutral or under-pronators rejoice! The Brooks Glycerin 14 was made with your enhanced comfort in mind. The upper consists of moisture-managing element mesh, a lightweight and breathable fabric to keep your foot feeling comfortable. The midsole offers S-257 Cushcole technology for increased cushioning and flexibility. The outsole contains ideal pressure zones to disperse pressure evenly in the heel, midfoot, and forefoot, allowing your shoe to last.