The Daehlie COMPETE TECH LS ultralight functional base layer is made of fabric containing Lyocell (Tencel) fibres - a type of viscose ecologically produced from crushed wood fibres or pulp, or by recycling other textiles. Compared to conventional viscose, the fibre is more durable and stronger, all the while being very absorbent (it absorbs up to 50% more liquid than cotton while keeping the skin feeling dry), non-creasing and cooling in summer, warming in winter. It is antibacterial, so it does not smell sweaty. It is velvety soft, very pleasant to the skin and slightly shiny. Moreover, it dries very well, so it is an excellent material for travelling. It's also suitable for high intensity training.