The Vibram FiveFingers Graspifier is built for lifters and movement practitioners who want the floor under their feet, not a stack of cushion between them and it. The segmented sole flexes with each toe independently, so the foot can spread and grip the way it would barefoot, which matters most when we're loading a barbell or working through a balance drill. The stretch synthetic upper conforms to the foot's shape from the first session, so there's no break-in period between us and the work. What Our Gearhead(R) Experts Are Saying:"I wear these for deadlifts and squats because the 5mm segmented sole puts my foot flat to the floor. There's no heel elevation shifting my weight forward, so I always have a direct connection to the platform."