Rubber sole Soft foam underfoot and around the heel provide lightweight cushioning. Reinforced toe tip adds durability when kids drag their toes. Asymmetrical collar design makes it easy for ankle flexibility. The "X" on the bottom is a nod to the 10th edition of the Team Hustle D series. A curved heel and flexibility grooves help make every step feel natural. From playtime to getting buckets, the Nike Team Hustle D 10 is a slam dunk for players of all levels. With optimized traction on the sole, more secure lacing, plus a design that’s durable and supportive, these are a major score whether you're shooting hoops or climbing on the playground.