Size & Fit Guide

Start with your head measurement

  1. Use a flexible tape around the widest part of your head, keeping it level above your eyebrows and ears.
  2. Compare your measurement with the size range for the exact product and variant. A letter size can mean different measurements across models.
  3. Try the helmet level on your head. Adjust the fit system and straps as directed in its manual. The fit should feel secure without pressure points.

If you are between sizes or cannot achieve a stable fit, contact us before choosing. Do not select a helmet by age or letter size alone.

Find the size range for your model

Goggles, glasses and helmet fit

Try the full setup together. The goggle foam should sit comfortably around your face without pressing your glasses into your nose or temples. Keep the helmet and goggle vents unobstructed.

OTG means over the glasses. Compatibility depends on the dimensions and shape of your prescription frames. External goggle dimensions do not describe the usable space inside; contact us with your frame measurements if unsure.

Need help? Email innerkingofficial@gmail.com with your product link, head measurement or order number.