1. FLEXPRO brand cotton sports socks 2. Composition: 54%cotton, 24%Acrylic,21%%polyester 3%spandex ... rackets, and tennis, shuttlecocks; every kind of high, medium stringing machines, screen wires, strings, grips; and every kind of professional sports ... & Uber Cup World Team Badminton Championships. Flexpro brand cotton sports socks