The men's tank top Sensor COOLMAX AIR is the lightest functional first layer Sensor item, designed primarily for active movement in warm weather or indoor sports. The Coolmax material from which this thermal underwear is made is the certified knit by Advansa, with its excellent moisture wicking, antibacterial treatment and excellent dimensional stability and elasticity. In addition, Coolmax fibres are enriched with silver ions which break down the cell wall of microorganisms and thus prevent odours. Coolmax clothing is equipped with comfortable flat seams.