NEW, softer PWRRUN foam formula cushions with less weight. Supportive underfoot design provides a stable ride. Seamless upper with breathable marled mesh. Supportive webbing helps you lock in the perfect fit. Updated FORMFIT design hugs your foot for a personalized feel. Durable rubber outsole. Sustainability - This style is vegan and contains recycled materials. APMA Certified. With a lighter footprint, this style contains recycled materials.