Why can’t I buy the whole range in bigger sizes?

We introduced a few styles in men’s sizes 3 years ago, and we still don’t sell a huge amount of these sizes so it is only suitable to make a small range of these at this time. 

Last year we also introduced a size 20 in some limited women's styles, again we don't sell many of these sizes so we haven't introduced them into the whole range.

We clearly mark all men's and women's products which are available in these larger sizes.