I ordered a cheep’ A1. Wanted to like it but it was felt bulky/big on my head. For me – the best bike bits are the ones that are there, do their thing and you never give them a thought.
I found the IXS Trail RS for £51 from bike-discount. It comes with a few variation/ways to fit. So you unclip the whole back strapping assembly and rotate it over one of three settings. Each one designed to sit the helmet in different places (affects visor location). Its net effect is with the combination you can manage to get the exact fit for you.
Snug and don’t know its there.