Fit Guide (FEND One)

FEND One Size Fit Guide

  1. FIND A STRING: Use a string, shoelace, or even a USB cable to circle your head just above your eyebrows.
  2. MARK AND MEASURE: Hold the string in place, mark where it overlaps, and then lay it flat next to a ruler or yardstick to measure.
  3. CHOOSE YOUR SIZE: Small: 21½-22in (54-56cm), Medium/Large: 22-24in (56-61cm)
  4. IN-BETWEEN SIZES?: If you’re in-between sizes, we recommend sizing up.