glad you asked.
the 3xl has the stitching off the premium as standard so I decided against it as the 2XL is our best selling size.
Whilst I did want to take the 3XL with the additions of the premium I was limited a little bit because, firstly we didnt have a run rate to support a 3XL and 3XL premium, but also because the cost of a premium 3XL would have been much more of a stock risk due to the large minimum order quantity on products like this.
If I see increasing demand on 3XL when I come to reorder then I will of course make it happen.