This is a reversible running cap in blue and yellow. It has a shallow crown. There is no tag, so there is no size information, but it is large. It's in good condition as it has been hardly used. With the adjustment strap tightened to its tightest setting, the circumference is about 59cm, measured by an amateur. Due to the construction, the base of the strap is only sewn to thin fabric, making it seem weak. Frequent size adjustments may cause it to tear. The adjustment strap can be stored on the side of the hat. It will be folded up small for shipping.