Hurling helmet size for 4 year old

CarPark2

My 4 and a half year old son has just started playing hurling. I need to get him a helmet. The smallest size in Elverys is Small. It seemed to fit ok to me, but I wouldn’t really know. The shop assistant suggested that I go online and get an extra small.
I’m happy to do that but a little bit concerned in case it is a bit too small for him, as I am presume that i won’t be able to return it.
Any advice from people who have bought helmets for a four year old?

nice_guy80

https://mycrosport.com/product-category/helmets/?filter_size=extra-small
myrco do extra small helmets
elverys don't bother stocking them

CarPark2

nice_guy80 wrote: »

https://mycrosport.com/product-category/helmets/?filter_size=extra-small
myrco do extra small helmets
elverys don't bother stocking them

Thanks. Have you bought one?
My question is whether it would be too small for a four year old.