These are the new and 'improved' "RAF Battle of Britain" goggles carried by most suppliers. The part they improved is nose part. They've shortened it some how. I have no clue why they would do that. On this specific model it looks not too bad, but there are other models where they just seem to have deleted the nose part entirely.
Another thing that has changed is the strap attachment. They've altered it so it fits most motorcycle helmets. Where these used to be somewhat flush with the goggles and helmet, they now protrude like a bugs antlers...
Chris' goggles were virtually the same as the original Battle of Br... errr, as the standard RAF MkVIII goggles.