The newer shirt is a step in the right direction. It’s a lighter material and it’s compatible with body armour. It’s addresses the ridiculous lob sided pen pocket/ shoulder pocket issue (who’d have thought you can put a pen in a normal Ubacs style pocket). There’s room for improvement certainly such as placing the flag on the blanking plate and swapping buttons for zips but one step at a time.
But most of all it offers an alternative to the ubacs, which is designed for warm weather which Ireland sees little of. a shirt that can be layered on top of a dry flow is a welcome option for the colder months where a smock might be too much. It’s not perfect but it’s in line with best international practice and not based on how it looks on a majors parade.