Aqua Lung SPF 50 Rated Long Sleeve Rash Guard Imported Lycra construction stretches to fit comfortably Quick-drying and "breathable" SPF50 rated and tested under Australia/New Zealand AZ/NZ 4399 Standard - the highest and most respected standard in the industry Flatloc stitching is comfortable and durable Designed to protect you from the elements in and out of the water