Fit Guide (FEND One)

FEND One Size Fit Guide

  1. Find a Measuring Tool: Use a string, shoelace, or USB cable to wrap around your head just above eyebrows.
  2. Mark & Measure: Mark where string overlaps and measure against a ruler or yardstick.
  3. Choose Your Size: Use the above chart to select your size. If you’re in-between sizes, we recommend sizing up.