Notch Classic Adjustable OD Operator cap has been a long time coming but it's finally here! We've added the OD Operator hat to our already wildly popular Adjustable Operator line based on feedback from our loyal customers. 100% cotton and 100% awesome! Get yours today! p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'} Features include:Patented Notch technologyWorks with virtually any style of glasses (SEE THE PERFECT FIT GUIDE)Rugged 100% cotton twill fabric2" x 3" front hook & loop patch Hook & loop patch on top in place of buttonUnstructured low profile fitLow profile hook & loop strapWhich notch location do you need? CLICK HERE We offer our patented notches in two locations: Standard Notch and Terra Notch (named after our co-founder). The Standard Notch (pictured above) is designed to work with most wrap-around or sport style sunglasses, shooting glasses, and safety glasses. These styles have a curved appearance, designed to conform to the contour of the head. The Terra Notch is designed to work with most aviator or fashion style sunglasses as well as prescription eyewear. These styles are more squared off at the corners, causing the frame to sit further away from the face. Available sizes: One Size Fits Most, One Size Fits Most-XS/Youth Notch Adjustable Hat Size Chart p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'}