Bowline is a super-wearable acetate optical style with adjustable wire-core temples and premium spring hinges. This classic shape is an everyday go-to style fit for any scenario. Smith Optics proudly assembles select products in our Clearfield, Utah facility, part of a nearly 60-year commitment to expanding U.S. operations and innovation. Read more about Smith prescription eyewear. Vision All Smith clear lenses come standard with a Premium Anti-Reflective coating, on the front and backside of lenses, which reduces glare to prevent eye fatigue and gives better visual acuity True optical clarity, through lightweight Polycarbonate lens material made for daily and active wear Superior hard coating, for improved scratch resistance Hydroleophobic coating repels water, dirt, and grease Photochromic and blue light lens options available Fit / Integration Medium-large fit, large coverage 4-base lens curvature is just right for everyday wear Spring hinges self-adjust to your face for a customized fit Frame Premium acetate frame Adjustable wire-core temples