Scouts Beaver Official Sweatshirt 28" /Age 7 Blue

My 6yr old is slight, chest measures under 24inchs. Which size has room for growth but doesnt look like he's wearing a tent?

My granson is moving up to the scouts but im not sure of the uniform i think its bottle green shirt or sweatshirt hope you can help

Is this the Beaver scouts uniform that kids in republic of ireland wear? Is

Hi my son is usually a 9-10 years which size would I need for him? Thanks xx