Layering. You hear about its benefits for skiing, hiking, camping, and mountaineering; it's no different being on the water. Kokatat's mid-weight Outercore Rash Guard provides unbeatable base-layer insulation against the cold and wet. OuterCore garments offer amazing thermal values, moisture management and quick dry times. The velour inner face is warm and soft against the skin, while the jersey knit outer face fabric makes layering easy. Flat-stitched seams prevent any skin irritation.
I have the short sleeve version of this and it is amazing. The problem is I usually don't wear it out surfing, rather as a base layer for mountain biking, hiking and snowboarding. I got a great deal for it on SAC. Love it.