Not sure if it helps you but I’ve got axials and sport masters and wear both inside my RST airbag suit. Cosy fit at first but the suit does give. I’ve found wearing ordinary socks as opposed help as it’s less bulk in the boot.
I bought the Dainese Sport Masters after you recommended them, and the boots have been brilliant. I love my Sport Master boots and may marry them.
That might be first time anyone’s bought anything on my recommendation. I’m glad you like them and they are comfy!
