I had bought jeans from them before that were excellent fitting but my third purchase were too tight. I knew I had put on weight and blamed myself.
I then ordered a Dean Winchester leather jacket in XL size (one size larger than my normal fit as they recommend when you are buying). The size that arrived was a small M (see the photo).
But worse than that, the jacket was approximately four inches shorter than the photo they sell it with, really more of a bomber jacket than a coat (see the second coat photo from their website).
I wrote to them with detailed measurements (including measurements of store bought coats) and they asked me to send photos. I did.
Their response was that the coat was perfectly cut and they could not be expected to conform to international sizes and I should have checked the size before ordering. Their website does not include any measurements for what they call "ready size" and so that was not possible.
Despite several attempts by me to get them to accept responsibility, they claimed that it was all my fault and that if I wanted a better fit I could order a new coat at my cost. They did not offer any compromise.
They steadfastly refused to respond to my questions on the difference between the design photo and what they sent me.
My advice? Don't bother with Make Your Own Jeans. They don't care about customers, they do not accept responsibility for their mistakes and they do not accept returns.