Ladies wetsuits are shaped for the female form (if you were wondering and is a question I sometimes get asked!). Ladies wetsuits are sized by dress sizes, although different makes have different idea of a dress size. EG: O’Neill are marked as US dress sizes which are bigger than UK dress sizes. Alder seem to be slightly smaller than UK dress sizes and TWF are at least 1 UK dress size lower than marked! This is why we only retail wetsuits from the shop as they differ so much.