evo.com | Outdoor Research Fashion Hats > Bluesign(R) approved nylon, UPF 50+ protection, and a stowable integrated bug mesh make the Outdoor Research Helios Bug Hat a one-stop answer for sun and insects both. A structured brim holds its shape on long days, and a detachable, adjustable chin cord keeps it locked down when the wind kicks up on an exposed ridge. UPF 50+ Sun Protection Detachable and Adjustable Chin Cord bluesign(R) Approved 100% Nylon Brim Width Center Back and Front 3.3" Stowable | Outdoor Research Helios Bug Hat 2027 - Large in Khaki | Nylon