The Madison Isoler Merino Sleeveless Base Layer provides unrivalled moisture absorption, and ideal first layer for any cyclist. The 100% Merino wool is 190gram in weight, ideal for sports. The Madison Isoler Merino Sleeveless Base Layer will keep 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 its wet to better regulate the body's temperature. As Merino is a natural fibre it naturally wicks sweat away from the body and doesn't hold the odours that man-made fibres do, keeping you dryer and odour free for longer. Madison Isoler Merino Sleeveless Base Layer Features The Merino hugs the body and stretches as you move making it the perfect fabric for a base layer The all over flat-lock stitching avoids any discomfort Reflective detailing for added visibility It might be wool, but its still machine washable