Incalzitoare Brate CUBE Arm Warmers Black Our CUBE Arm Warmers might look low key but rest assured, like all of our products they're packed with functional features. From the breathable, wind-resistant technical fabric to the anti-slip stretchy silicone band on the upper arm and reflective logo print - we created them with attention to detail. The best things do come in small packages! warming technical fabric; silicone tape on thigh cuff; reflective details material 80% polyester, 20% elastane