I can't review these shirts for flat-chested men but I can for myself: 5' 9 tall, 38-40DD, long torso. These fit well, not too short considering the chest size, and they're soft, not paper-thin like some t-shirts these days. The V-neck is a bit high, keep that in mind. I like that aspect but others might not.After I tried out the first batch, I bought a second before they were gone. I chose X-Large even though automated suggestion said, Large. I've put on C19 weight, and I wear these to bed, need some toss-n-turn room. I'm happy with these.
Rating: [5 of 5 Stars!]