The MONS ROYALE Bella Tech Flex Hood is far from an ordinary baselayer. From the moment you pull it on, you'll notice its softness, thanks to the properties of the merino wool that makes up the majority of its material. Also in there are some stretchy synthetics, making the Bella Tech Flex Hood conform to your body without any bunching or discomfort. This is an outstanding first layer for high exertion activities.