Wear one under your suit for comfort, or by itself to keep the sun off.

Features a 2.5" high collar for extra neck protection.

Made of medium weight lycra with flat sewn seams. Weight 6 oz., sun protection UPF = 50

Note: Sizing below is based on a snug fit for under your wetsuit.  Consider ordering a size larger if you plan to wear the shirt alone for sun protection. 

chest 37 - 38 wear size: S
chest 39 - 40 wear size: M
chest 41 - 42 wear size: L
chest 43 - 44 wear size: XL
chest 45 - 46 wear size:XXL
chest 47 - 48 wear size:XXXL