Louis Garneau Cycling Zip-Leg Warmers 2 The Louis Garneau Zip-Leg warmers feature HeatMaxx fabric that has a soft brushed inside to wick moisture while retaining heat. STAY IN PLACE: The silicone thigh grippers hold these warmers in place during activity. STORE AWAY: They're easily removed and stashed in a pocket or pack when things warm up. EASY TO REMOVE: The Zip-Leg Warmers feature a 9-inch ankle zipper. VISIBLE: Reflective accents provide visibility in low light.