16+ Jmd Helmet Size Chart Background. The helmet size of your child will depend on the head measurement of your child. H&h sports protection usa, inc.
Manufacturers do not always use the same size labels for a given.
Your helmet should fit snugly. If you can't remember your size, no problem, just measure yourself again. Due to varying shaped heads that are apparently the same size when measured by a tape may not necessarily fit the same size. To find your approximate helmet size, measure around your head just above the eyebrows and use the table below.