Fox Racing - Flexair Knee Brace SockThe extra tall Flexair Knee Brace Socks fold neatly over the top of a knee brace, while the thin, lightweight construction keeps your feet cool and dry to manage moisture build up as you ride. The large mesh back panel kicks up the cooling even further. Simply pull up the sock, then roll it down over your braces for maximum security. Features Specifically designed to be worn with a knee brace Extra tall construction designed to be folded over the top