So what is a "BUFF" you say? Well it is the piece of apparel worn by the people on the show SURVIVOR. I always buy a few when i'm in spain. From what I understand it is Spanish in origin and is available in a variety of colors. I use mine all winter long to cover my face and neck. You could wear it on your head, neck etc it is very practical. The outdoor store "Koronel Tapioca" USED to carry them but the contract went sour. I bought my most recent one in Pamplona in an out of the way convienient store, so I' sure you can find them in Madrid. I guarantee it will be the best money you will spend in a while!!