Scuba diving neoprene dry suit. I have not used this for 15 years, but it was stored carefully. The zip opens and closes properly. The neck and wrist seals look fine: no splits, cuts or deterioration apparent. Complete with correct fitting low pressure hose.
I used this suit for three seasons of diving. I'm a 5ft 8 inches / 172 cm tall male, lightly built (11 stone / 70Kg) and this suit fitted me very well in all directions. The label is marked female: you can draw whatever conclusions you wish! The boots (which I had fitted before my last season of diving) are size 8 and fitted me well, although my usual shoe size is 7.5.
I think the suit is cut from 9mm neoprene: it was quite warm enough for UK waters, wearing only a T-shirt underneath. Being neoprene, a little water ingress doesn't upset your dive: I really wonder at the ruined weekends I've seen with club members and their membrane dry suits! Prospective purchasers are welcome to inspect / try on, in Raynes Park, London SW20.
5 minutes drive from the A3, 10 minutes walk from Raynes Park rail station.