I can't comment on how it relates to TB or BoO, but I really love the O&S shirts. I own their US-made shirts from previous seasons as well as a few more recent ones from Italy, and I definitely prefer the Italy ones over the US ones. Part of it may have to do with what seems like slight adjustments to the fit that they've made, but I find that they fit me much better and have a better shape. I only cold wash and hang dry, but I haven't had any issues with construction either. Obviously not a shirt I'm going to wear out hiking, but they stand up to daily wear quite well in my experience. They've definitely gotten more adventurous with their fabrics and patterns in recent seasons, but depending on what price you're looking at, they can be a solid deal. If helpful, I typically wear a small in GBV and medium in Epaulet and have been taking a medium in Ovadia as of late. Hope that helps a bit.