This high performance baselayer features Argentium baselayer technology. This ensures the garment has odour resistant properties through the use of silver ion technology, as well as UV absorbers and optimised knit structure to block harmful UV rays. This also contains moisture management and wicking properties through the use of a denier gradient knit. Polygiene is a permanent odour control technology for the treatment of high performance fabrics. It uses a low concentration of natural silver salt to inhibit the growth of odour-causing bacteria.. Material: 100% Polyester