Whether you're out on the reservoir whipping your SUP or duck-diving on your way out to lineup, the Billabong Submersible Long Sleeve Rashguard offers protection from the elements that you can wear to and from the water. It may be the most versatile shirt in your rotation; for fly-fishing, SUPing, surfing, and any other water activity you can think of, the Billabong Submersible has got you covered.