EVOLUTYON BIOTECH is the underwear shirt that marks a new era in functional apparel. Made using innovative biomaterials, without fossil fuel based synthetics, enhanced through UYN's patented technologies, this shirt provides an extraordinary natural feel on the skin and the ideal support for your activities in medium to low temperatures. Thanks to the hollow structure of the kapok fibre, the lightest natural fibre in the world, EVOLUTYON BIOTECH effectively insulates the body and maintains the ideal micro-climate. The elastic FLEXICORN fibre from corn seeds promotes a perfect fit and unlimited freedom of movement.