Unisex Outdoor Research Adult Helios Sun Hat Size Medium Khaki $40 Product Information The classic look you love with the protection you need. The Outdoor Researc® Men's Helios Sun Hat gives you UPF 50+ protection and keeps moisture away from your brow during outdoor ventures. Keep this hat snug on the trails or out on the lake with the external drawcord adjustment and removable chin cord. The Helios Sun Hat is comfortable and offers an oasis of shade! FEATURES: • SolarShield ™ construction • UPF 50+ • Foam-stiffened brim floats • TransAction ™ headband for comfort and moisture management • External drawcord adjustment • Removable chin cord with cordlock • Ripstop nylon/polyester • Brand : Outdoor Research • Country of Origin : Imported • Style: 80700 Here are the circumference measurements: S: 21 1/2"-22"; M: 22 1/4"-22 7/8"; L: 23"-23 5/8";XL: 23 7/8"-24".