Whilst not considered to be one of the classic stories in the shows history, it does however feature what is probably its most realistic space suite to date.
Yes, that is indeed a Windak high altitude pressure suit, developed for the RAF and first seen embarking on an acting career in the 1964 film version of The First Men in the Moon.
I’ll make a couple of assumptions at this point and say that the BBC hired these from a costume suppliers rather than recreating them in house and that these are therefore most probably the very same suits to feature in the HG Well’s classic.
Although there are only black and white reference pictures, you can still see the tonal difference between the two suits, suggesting to me that these are the dark blue/black one and the yellow one.
We’ll catch up with these two again in the future in a galaxy far, far away where they’ll be keeping company with some equally starry space suits from across the pond.