What do we mean by one size?
'One size' garments are only available in 1 size. This does not mean that 1 size will fit everybody, but typically it will fit a dress size 8-14.

Rubber Garments
All rubber wear is designed to be a tight fit, the Medium will suit sizes 10-12 and the large will suit sizes 14-16. We advise you to always use a little talc on the body and the inside of the garment to help ease it on.