Sondico marvel base layer mens the sondico marvel base layer will help you to stand out thanks to the large marvel printed design across the front it comes with short sleeves round neck and flat lock seams for a comfortable fit elasticated hem while optivent technology helps to draw moisture away from the skin to keep you cool and dry can be worn as a base layer or on its own mens base layer round neck short sleeves flat lock seams printed marvel design optivent