Meet the trainer versatile enough to withstand the rigors of a fast-paced group class or a heavy day in the weight room. Equipped with a flat heel, high-abrasion materials and a flexible sole, it provides comfort and support that's ready to hit the gym. See the specks on the outsole? That means it's constructed with at least 8% Nike Grind material, made from scraps from the footwear manufacturing process. Stability for Sets The overall design helps brace your heel on top of a flat sole for stability during lifting and squats. Stacked midfoot foam adds sturdiness, so you can squeeze out another rep. Grip and Go Grooves under the toes keep it flexible enough for agility drills. Grippy traction keeps you moving on all types of gym surfaces. Built Tough High-abrasion honeycomb mesh and durable overlays on the back and sides give it grit to keep you going.