Adjustable synthetic strap with soft foam underneath for added comfort. Footbed built with two layers of Performance 4D Foam® for unprecedented comfort. Anatomical contours provide additional cushioning. Re-engineered EVA outsole built with durable traction pods in heel for lightweight cushioning & comfort. UPPER: New HeatGear® lined synthetic strap offers custom fit with adjustable Velcro®. FOOTBED: Unprecedented comfort with two layers of Under Armour® Performance 4D Foam® / Anatomical contours provide additional cushioning. OUTSOLE: New engineered EVA outsole with durable traction pods in the heel provides lightweight cushioning and comfort