EUC Size-10 Color-Sapphire Blue/Black We designed this anti-stink long sleeve to be your feather-light layer for sweaty runs and training sessions. The body is made without side seams to keep chafe in check, and the fabric is lightweight so you can move freely. There's extra ventilation in high-sweat zones help you let off steam. Silverescent® technology uses silver fibres to inhibit the growth of odour-causing bacteria on this long sleeve. You'll be reaching for it again and again. Lightweight fabric and seamless construction keep you moving freely