This is the packable ventilated hat that keeps one cool and protected from the sun. Ideal for those traveling to warm climates, a moisture wicking sweatband and breathable ventilation system built into the crown combat heat and enable crisp breezes to pass through when hiking in Hawaii, riding on safari, or touring Rome. Keeping an avid adventurer safe from the harmful effects of UV rays, the brim provides 360º of sun protection (UPF 50+). Handmade by Henschel, makers of fine hats for over 65 years, the hat can be flattened, rolled up, and compressed to squeeze into an over-stuffed suitcase or between airplane seats. Made with 100% polyester, the water-repellent, buoyant hat instantly springs back to its original shape when unpacked. Included chin cord keeps it securely fastened and a secret inside pocket provides the perfect place for storing money when traveling. Sizes M (hat size 7-7 1/8; head circumference 22 1/4"), L (7 1/4-7 3/8; 23"), or XL (7 1/2-7 3/4; 23 7/8").