Bio-based TPU outsole (corn derived) for comfort and durability. Natural materials made from wool and corn give these Reebok unisex Club C Wool & Corn court shoes in Merlot Red a progressive design. Believe it or not, an even cleaner take on the tennis-inspired Club C shoes is possible. The soft wool upper is in a monochromatic color for a minimalist look. The fresh outsole has a streamlined design to keep it simple.