The GripGrab Merino Blend Thermal Long Sleeve Base Layer is the ultimate insulating layer for the winter season. The unique 50/50 blend offers the familiar benefits of merino wool - super soft, naturally insulating and with exceptional temperature regulation - and combines them with the added durability, stretch and crease resistance of polyester blends. The result is that this base layer is incredibly comfortable to wear next to the skin, but it also has great longevity and will cope exceptionally well with repeated use and frequent washing - the perfect combination for winter cycling wear.