Throw back to the Ervell thread where they didn't make any bombers in XL
OAMC - Over All Master Cloth - Discussion Thread - Page 5
@OccultaVexillum depends on how you want to wear it. If you want to wear it as a layered/sweater piece and want to wear a jacket on top of it, I'd say get your regular OAMC size. If you want to wear a sweater or sweatshirt under the jacket, size up. Its definitely slim fitting. I am a size L in OAMC, and I'm happy I got the L because I wanted to wear it like a cardigan and have it under a jacket. But if you want to wear it as a traditional jacket, size up for sure.