So, this is a great hat so far. I like that the outer shell is nylon, and the inner is polyester, as this will be great for traveling. I like that it will hold shape well and that the bill folds, making it perfect for packing. It feels very well made, and fits my head very well. I normally am a 7-1/8, or 22-1/4. I got the medium, and with a tiny bit of tightening the string (like, barely), it fits like a glove. I will say one thing, though. This colour is NOT a grey, it's more like a slate blue (blue-grey), which to me is one of my favourite colours, so I'm not bothered about that. But if you are looking for a true grey, this won't be it. I attached some pictures to show the colour. Overall though, I'd recommend this to anyone looking for a great travel hat!
Rating: [5 of 5 Stars!]