The Cocksox Brief Carbon Black is an old design but the legend is now getting a little tweak and the bindings are being turned white. It has worked so well that any major change would ruin the legendary brief. What the original had still remains and that includes, but not limited to, the enhanced support and comfort, the ability to wick moisture away and that is all primarily due to the wonderful Supplex fabric. Day, night or for whatever activity, you chose the right brief with the Cocksox Brief Carbon Black. The brief's composition is 92% Supplex and 8% Lycra.