Louis Garneau - Cycling Arm Warmers 2 The Louis Garneau Arm Warmers feature HeatMaxx fabric that has a soft brushed inside to wick moisture while retaining heat. The biceps silicone grippers hold these warmers in place. The arm warmers can be easily removed and stashed in a pocket or pack when things warm up. The 4-way stretch fabric and flatlock seams offer greater comfort. Reflective accents provide extra visibility in low light.