Skin Cancer Foundation Recommended The sophisticated Greenwich hat, made with innovative Flexi-Weave fabric, offers UPF 50+ sun protection with its navy detailing and lightweight, travel-ready silhouette. The Greenwich exudes effortless sophistication, combining impeccable UPF 50+ sun protection with a sleek, travel-ready design. Its lightweight Flexi-Weave construction and sharp navy detailing create a striking silhouette that transitions seamlessly from resort retreats to elegant outdoor gatherings. UPF 50+ fabric blocks 97.5% of ultraviolet rays, according to the Australian Radiation Protection Agency. Brim Size: 3" Crown Size: M (58cm) Adjustability: Inner drawstring adjusts fit Fabric: 100% Flexi-Weave polyester, exclusive of trim *Wallaroo hats do not feature a built-in magnet for emblems. For hats with magnetic emblems, please purchase Carkella hats. Care: Spot clean Packable: Soft Taco Fold - Fold in half gently, do not crease. All Wallaroo Hats have an internal drawstring to fit the hat to your head (the women's Aqua Hat is the only exception - it stretches to fit). Be sure to choose a hat that is the same circumference as or larger than your head size.