An ideal first layer the isoler merino baselayer provides unrivalled moisture absorption the 100 merino wool is 190gram in weight ideal for sports by keeping you warm on the cool days and quickly wicks the sweat away on the warmer days unlike man made fibres merino wool retains its thermal properties when it39s wet to better regulate the body39s temperature as merino is a natural fibre it naturally wicks sweat away from the body and doesnt hold the odours that man made fibres d