Leatt Airflex Pro Knee Guards. Size Large: 16-18.5" thigh & 13-15" calf. Fit is true to the measurements in sizing chart. I used these for part of a summer season, so they're not brand-new-too-tight, but elastics are still in great shape. Some logo rub and flaking off the mesh back fabric with small wear and tear marks as noted in photos. The main knee panels really do pull air through to vent when it's windy and/or you're on the move, and leg grippers are some of the most comfortable type I've used. Machine washed with unscented detergent and laid flat to dry.