Reebok JJ II - Grade School Kids Training Shoes in Black / Alloy Inspired By JJ Watt. The Reebok JJ II is engineered to meet the training needs of one of the most formidable athletes in the game: JJ Watt. Inspired by JJ’s everyday focus, the grade school Reebok JJ II provides the versatility and stability kids need to attack their day with cushioning to keep them comfortable. Materials: Seamless Lenoweave upper for breathability with a lightweight feel. Low-cut design for freedom of movement and quicker transitions. Designed for: Versatile training, weight lifting, and explosive agility. Support pillars in the midsole prevent foam collapse and increase cushioning. High-performance rubber outsole along the full length for the ultimate traction. LiquidFoam technology cushions and stabilizes. Color: Black / Alloy / White.