Protection against sunlight - UPF50+. Unisex styling. Stitched ventilation eyelets. TearAway label for ease of rebranding. H... Protection against sunlight - UPF50+. Unisex styling. Stitched ventilation eyelets. TearAway label for ease of rebranding. Head circumference: S/M 53cm - L/XL 55cm.