Durable mesh for lightweight support Lace-up construction with heel wrap for stability Nike Air underfoot for cushioned comfort Redesigned heel takes a load off of your heaviest sets Padded collar for added comfort Flat, wide sole with rubber tread for stability and grippy traction The Nike Air Max Alpha Trainer 4 is imported. Tackle tough training sessions with ease in the Men's Nike Air Max Alpha Trainer 4 Training Shoes. Lightweight yet stable, these cushioned trainers are built for your hardest routines.