The Nike CJ81 Trainer Max, the first signature training shoe of NFL wide receiver Calvin Johnson, is specifically crafted for exceptional performance on the field. In August 2013, Johnson, also known as Megatron, introduced a new color variant of his sneaker, the CJ81 Trainer Max 'Wolf Grey.' This stylish edition pays tribute to the Detroit Tigers with its palette, while the graphic upper features star-shaped perforation to ensure optimal ventilation. Additionally, a mid-foot arch strap provides secure stability for enhanced support during intense athletic activities.