If you're familiar with Under Armour's "Loose Fit" shirts that you've bought at your local sporting goods store then you know exactly how this will fit you and your crew. The "loose fit" is a traditional fit, true to size, and a little forgiving. So you can order what you're used to and be confident that everyone in your group will have a big enough shirt. I'm typically a medium and this medium fit me with some extra room, but I wouldn't down-size to a small either. They do a good job of providing enough excess shirt to keep everything tucked and looking good.