The Brooks Men's Glycerin 17 offers comfort laced around your feet. Featuring super-soft cushioning & plush fit makes every heel to toe soft and smooth. The DNA LOFT cushioning provides a soft, luxurious feeling underfoot without losing responsiveness or durability, while the OrthoLite sockliner provides premium step-in comfort. The DNA LOFT transition zone makes every move from heel to toe feel incredibly soft and smooth. The plush feel of an internal stretch bootie surrounds your foot and moves and expands with your stride. The engineered mesh upper and 3D Fit Print technology only enhance the fit.