?Fabric Type?100% Polyester. ?High-Density Fabric?The sun shirts are made of high-density fabric that blocks 98% of the harmful sunlight and does not see through, ensuring complete privacy and protection. ?UV Protection?UPF 50+ shirts provide the highest level of protection to your skin from harmful UV damage. ?4-Way Stretch & Flat Shoulder Sleeve?4-Way stretch makes the fabric full of tension, more flexible and comfortable. Flatlock seamlines and tagless collar that increase comfort. ?Lightweight & Quick dry?At the time when you sweat, the shirt helps to dry it instantly for maximum comfort. Further, it also absorbs the sweat away from the body so that it can evaporate faster. ?Suitable for Multi-Occasions?Perfect for a variety of sports and activities, including athletic, workouts, running, fishing, sailing, swimming, hiking, and more.