How small is small 12 year old small or 7 1/4 head???
one size fits small
Well, I found this on the Smith Optics site. Didn’t help me much though.
How does Smith size their helmets?
Smith helmets provide exceptional fit and comfort in both Adult and Youth sizes. For Adult HFS/LFS: Small 51-55 cm, Medium 55-59 cm, Large 59-63 cm; X-Large 63-67Holt: X-Small 52-54 cm, Small 54-56 cm, Medium 56-58 cm, Large 58-60 cm, X-Large 60-62 cm; Junior HFS: One Size Fits All 48-53 cm.