Buff Headwear UV Original Tonga Now with Polygiene technology, Buff products are cleaner and wont stink like a trooper after your workout. Multifunctional - Sun protection, prevent insect bites, absorb glare, block wind, guard against flying rain drops & cuts wind noise in moving boat. Dries faster, highly breathable, wicks moisture, wind resistant. Seamless design - no chafing or pressure points. One size fits most: 53cm-62cm