NWT Size XL SolarShield Construction: UPF 50+ Products with the UPF symbol are made of UV-resistant fabrics that protect the wearer from exposure to intense sunlight, and are constructed for maximum protection. This broad sun hat has a 50+ UPF rating. The headband moves moisture away from your brow, while the brim offers an oasis of shade. The drawcord adjustment keeps it snug on long trails.