See Kai Run Cyrus IV Boy's Sandal gathletic EVA front and rear sole

EVA front and rear sole pads allow the shoe to move with the foot when pointing and flexing

genuine shearling leather upper and genuine shearling wool lining keeps feet warm and the leather sockliner is breathable and wicks away moisture

Just as Joel Embiid says

Galactic Shimmer Patent Material

See Kai Run Cyrus IV Boy's Sandal gathletic EVA front and rear soleThis boys sandal has a classic fisherman silhouette in high performance materials that can go from the beach to the play ground. Double straps adjust for a secure fit, and the rugged sole is designed for all day adventuring. Sporty fisherman closed toe sandal in durable, water friendly materials Comfortable molded EVA phylon footbed for all day wear Generous toe box promotes healthy foot development Rubber outsole designed for traction and flexibility