The FUTURUM 4 SEASONS Base Layer Merino is the first seamless base layer that is made of no less than 95% merino wool. This base layer can be used in all conditions and regulates your body temperature optimally. In bad weather, the merino wool transports moisture and keeps you pleasantly warm. This highly functional shirt is round knitted for a seamless design. The base layer feels super soft and comfortable and does not retain bad odors, so you can wear it day in, day out. Lanolin in the wool is released when it gets damp, so it garment stays fresh. Merino wool is a durable, biodegradable material that is easy to care for. This baselayer offers a good fit due to the elastic fabric.