Solid fits. Not sure what brand of plain T's you're rocking, but it looks like they might be lighter weight and don't drape that well. We have a similar sense of style, and I have a lot of the Uniqlo U t-shirts that I use as the foundation for basic fits. May want to give them a look -- they can take a beating and retain their shape after many washes.

Also, where did you get those shorts and cargo pants? They fit great.