Koloa Surf Co. Wide-Brim Outdoor Hat with Sun Flap and UPF Protection Koloa Surf Co. Wide-Brim Outdoor Hat with Sun Flap and UPF Protection. The Koloa Surf Co. Wide-Brim Outdoor Hat isTrail-ready, this high-performance essential features No Fly Zone insect repellant technology, UPF 30+ sun protection, a concealable sun flap and a moisture-wicking sweatband. The foam brim keeps it afloat in water. Koloa Thruster Surfboard Logo printed on back of sun flap. Trail-ready, this high-performance essential features No Fly Zone insect repellant technology, UPF 30+ sun protection, a concealable sun flap and a moisture-wicking sweatband. The foam brim keeps it afloat in water. Fabric: 75/25 poly/nylon ripstop Structure: Unstructured Features: Adjustable shock cord at crown, clip-on, adjustable shock cord. Adult Sizes: S/M, L/XL