StringBenderBlack hats are by far the best seller as you can't go wrong with the Original. If you want a dark colored hat though I'd suggest the "Espresso". It's a super dark brown that looks almost black in most lights but has a slightly warmer hue to it. Not nearly as many people out there with an Espresso colored Black Rock Hat.
StringBenderReceived the XL - fits great. For others, the sizing charts is pretty accurate, but if your head size is in the top half of the size range, it will be snug (but not uncomfortably so). I prefer a light feel on the head band/fit to compliment the exceptionally light feel of the hat itself, so I sized up. Keep in mind, this was a sample size of 1 large and 1 XL, so YRMV.