- 24Fw new spring and summer Prad* rubber cross flat sandals, sporty fisherman sandals, these sports sandals use contemporary lines and details to reinterpret retro beach sandals. They are made of rubber and decorated with the iconic enameled triangle metal logo of the Prad* series. Shoes Surface: Rubber material Feet: Sheepskin Feet Size: 35-39 (40 customized, non-returnable),