The Craft Cool Mesh Superlight SL sleeveless undershirt is made of thin, lightweight (80gsm) and functional polyester fabric with the CoolMax Air technology. This technology consists of propeller shaped micro-channel fibres. This offers excellent performance when it comes to moisture wicking and breathability. This also makes the Cool Mesh Superlight SL undershirt suitable for high intensity training in warm conditions. The tight fit around the body, bodymapped panels, and seamless insersts result in optimal ventilation and comfort.