I use shirts like this primarily as undershirts when I'm at work, as I wear Polos on the daily. However, on occasion, I do go outside for walks and runs with these on, as the material is typically perfect for that type of activity. Given the aforementioned "loose" fitting nature of these shirts, it's even better for those instances because I find they aren't sticking to me if I've worked up a sweat, as much as a smaller size would.There are just two things about the shirts that I'm just a tad…