Features non-slip gripping "strips" to hold the sleeve in place. Surfers benefit from the protection the SurfSleeve® offers against boardshort rash. Light weight to fold and fit right into your boardshort pocket. You can pull them out, even in the line up, and put them to use. Finally an excellent alternative from wearing two pairs of shorts in warm water. SurfSleeve- The first in rashguard sleeve protection from boardshort rash. For sizing, measure your upper thigh. Our goal is to give surfers another option when surfing in warm water. After doing some research and development there is now an excellent alternative. SurfSleeve. Some of the great benefits of our product. · Easily fold and fit right into boardshort pocket · You can bring them out in the line up and put them on · Allows your boardshorts to move around, no sticking, which produces rash · No need to change out of quick dry boardshorts (under shorts remain damp) · Avoid purchasing overly priced boardshorts that claim “less rash” · Dries quickly for another session if required · Affordable leg rash protection · First ever of it’s kind in rashguard sleeve type protection from boardshort rash Traveling to the Tropics... Don't forget your SurfSleeve!