Conquer your miles in pure comfort with the Brooks Glycerin 21 men's running shoes. They feature the DNA Loft v3 technology for optimal softness underfoot without losing responsiveness or durability. The widened platform of the outsole will help you with quick transitions, so they can be smoother and easier. Also, the engineered mesh upper and 3D Fit Print technology both enhance the fit so you can feel supported every step of the way and the reflective details help to make you more visible when you run in low light conditions.