Columbia Bora Bora II Booney - Take on the elements in this vented hat with sun blocking, moisture wicking, and a 3-inch brim for shade. An adjustable chin strap lets you secure the hat on windy days. Omni-Shade UPF 50 guards against skin damage using tight fabric construction and modified fibers to block UVA/UVB rays Omni-Wick sweatband keeps you dry and cool by pulling moisture to the fabric's surface to evaporate Adjustable chin strap and toggle in back secure hat in the wind 3-inch brim Textured poplin 100% nylon Style: 1447091