1 of 2 people found the following review helpful
Best helmet for a small head.,
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This review is from: Polisport Spike Boy's Baby Bike Helmet - Blue, 44-48cm (Sports)
This is the only helmet I could find that fit my 13 month old and I had been getting desperate trying to find one so he could go in the bike trailer. The other one we looked at with a small circumference was the specialized small fry but although it said it could be used from 44cm, and I measured my son's head circumference as 46cm, it was too large. This, on the other hand, fits perfectly with room to grow. He loves the cute design too.