Under Armour SpeedForm™ Fortis running shoes combine the beloved elements of the SpeedForm™ series with even more cushion and comfort. You'll love the virtually seam-free feel of the upper for a distraction-free experience. Reliable flexibility with a light weight and exceptional breathability encourage the natural motion of your feet. Pick them out of the line-up for their own distinct look and feel.Upper: ArmourVent™ mesh upper delivers true breathability in a light, stretchy, durable and fast-drying fabric. Seamless Heel Cup provides a locked-in, anatomical fit. Ultrasonic seams provide a smooth, sock-like fit with no ridges or stitches. Mesh tongue provides cool breathability. Lace-up front offers an adjustable fit.Midsole: Charged Foam midsole provides cushion and response. Molded 4D Foam® footbed conforms to the foot's exact shape, eliminating slippage.Outsole: Blown rubber outsole with carbon rubber heel creates lightweight but durable performance.