Made of Supplex and 10% Lycra. What that means is that with these pair of yoga capris you are going to get a lot of performance support when wearing these pants. Additionally, the side mesh helps keep you cool and comfortable. So whether it's yoga or any other activity, if support, breath-ability and comfort is what you're looking for, then this could be it. Supplex is a brand of synthetic fabric that feels like cotton, but has the benefits of hot losing shape, retaining color and drying faster.