I found Oromen on Instagram and know it can be a stretch to trust a brand sight unseen. The sizing recommendation on the site was confusing and I had heard about delays in shipping and communication but I decided to write to their customer service anyway to confirm fit and shipping timing.
They've heard of the feedback about shipping delays but I have to give them credit for replying and acknowledging it and working on it; I imagine replying to a lot of questions and getting out orders can make some customers impatient.
For reference, I'm 5'9" and weigh 200lbs and the medium fits perfectly and I wore the shirt to work the first day I got it and got a compliment on it.
Overall, I'm very satisfied with the quality, fit, and pricing.