Don't change a thing is what LT said with a smile when he saw the Nike Air Max LT21 training shoe. Leather, synthetic and nubuck upper. Lateral forefoot outrigger helps keep you stable in training and on turf. Phylon™ midsole with forefoot flex grooves offers natural motion. Visible Max Air-Sole® unit in the heel adds comfort. Soft spikes and sharp nubs provide traction on turf and in the weight room. Wt. 11.2 oz.