Louis Garneau Cycling Knee Warmers 2 Polyester The Louis Garneau knee warmers feature HeatMaxx fabric that has a soft brushed inside to wick moisture while retaining heat. STAY IN PLACE: The thigh silicone grippers hold these warmers in place while you ride. STORE AWAY: They're easily removed and stashed in a pocket or pack when things warm up. COMFORTABLE: The flatlock seams reduce irritation and provide greater comfort. VISIBLE: Reflective logos offer extra visibility and safety in low light.