Comfortable Cycling Cap / Great as an everyday running hat too! Made from polyester blend fabric which keeps moisture away. Elastic material which sretches for maximum fit. Bill can be flipped up or down depending on your needs One size fits most. Beautifully constructed out of a polyester blend fabric wicks moisture and keeps your dome dry. Just like any another other cycling cap this one comes with a bill that can be flipped up or worn down. One size fits most and is constructed with elastic to give you a little extra stretch.