Like the CapoForma Arm Warmers, the CF CSS Knee Warmer is an impressively engineered garment. It's one of the few knee warmers that actually has a front and rear -- and this can be told by the panels not just the logo placement. The knee warmers have an upper panel, a lower panel, an articulated elbow, flat-lock seams, and a silicone gel gripper to hold everything securely. Not only that, these warmers use Windtex Topazio fabric -- it's a stretchy Windtex -- to keep the windward portions of the knee warm. It also has Super Roubaix fleece for comfort, warmth and breathability where the wind doesn't hit. The color is Black. Sizes are S/M and L/XL.