Medium measures 55-59 cm, not 53-58. Originally bought it for my 5 year old, but gave it to my 13 year old instead. Looks great and easy to adjust.

Great fit! Very comfortable!

Can't put a price on the safety and wellbeing of my kids... But it's still nice when the price of the equipment providing that safety is reasonable AND when the quality/comfort is top-notch. My kiddo loves her shiny, pink helmet. Only thing to note is that it is not headphone-ready as so many other helmets these days are. That's fine because my kiddo is so young and doesn't need distractions of music or on-ear comms while she's learning. But in case that's something you were looking for, this helmet trades off the speaker space for extra padding/insulation to keep her head/ears nice and cozy

I was looking for good quality and affordability. Skeptical to purchase a 'Jr' for a proper adult fit. But the metric sizing is consistent among all my helmets, and fit and coverage of the head is exactly what I wanted. I purchased two in different colors. The recipients and I are extremely happy.

As expected from SMITH

Daughter says it's comfortable, and it seems to fit her head very well, which is the most important thing with helmets. We appreciate the additional protection afforded by MIPS. Very satisfied with both this Glide Jr. and her hard-sided Counter Jr. race helmet by Smith.

Looks great, and fits perfectly. Very warm! The chin strap protection is loved by the kids!

This was a gift, my nephews loved their helmets and the fit was great. Getting them each their own favorite color was the best part (after brain protection of course).

Lots of technology built into this helmet making it a great value for protecting your little ones. It has a comfortable liner and a secure fit.

I wish this style/version came in matte white and had adjustable vents. If so, I would definitely provide 5 star review. Love the comfort.