Show off your national team colours wherever you go when you wear an arena Flags face mask. Available in lots of different colours of countries from all over the world, this face mask is made of polyester on the outside and soft cotton on the inside. It can be washed and reused and has an inside pocket for attaching a filter and adjustable straps, so it fits you perfectly. This product is not a medical device and is for personal use only. One size fits all.