This HH product offers both advanced moisture management through it's Lifa fiber technology and sun protection (UPF40) in a T shirt construction ideal for any summer or indoor Sport activity. Helly Hansen sailing gear is worn by world-class sailors across all five oceans.As a leading Scandinavian workwear brand, you'll see Helly Hansen at work-sites where performance, protection and safety matter most. Features: 74% polyester and 26% polypropylene, Lifa flow technology (superior moisture management). UPF 40 sun protection, relaxed fit and moisture wicking. Material: Polyester, Polypropylene.