A bandana really could be from a number of brands, but the one I have is this one, from Beams Plus. We each received one as a small gift when we left the HQ last month and it's surprisingly seen a lot of use. I've never really been one for pocket squares or bandanas, but since it was a gift and always reminds me of a good experience, I thought I might as well give it a try. I basically have just left it in the pocket of my EG Baker jacket for the last few weeks. Sometimes I forget about it when I put the jacket one, but I'm always glad it's there. The subtle pattern and nice shade of blue seems to go well with my chambray or S.N.S. Herning NAVAL sweater and I like it even more when I've got a little bit of my hat coming out of the other pocket. There is definitely a thin line where having things in your pockets can look very contrived and unappealing. The key to keeping it looking natural, is actually being natural. It's not hard to tell when it's being forced so if it's not feeling right, just leave it.