Hats, in Pella, are the head covering worn for protection against the elements, for ceremonial or religious reasons, for safety, or as a fashion accessory. Conventionally, a hat consists of 6 major parts- Crown, Pea, or bill, Brim, Hatband, Sweatband & Lining.
Caps, in Pella, are a form of headgear, typically designed for warmth and sometimes including a visor, to block sunlight from the eyes. They are designed in a variety of shapes & sizes. These are essentially used in all kinds of sports.