In its simplest form the poncho is essentially a single large sheet of fabric with an opening in the center, for the head, and often it has an extra piece of fabric serving as a hood. Rainproof ponchos normally are fitted with fasteners to close the sides once the poncho is draped over the body, with openings provided for the arms; many have hoods attached to ward off wind and rain.
Alternative ponchos are now designed as fashion items. They are the same shape but of different material. They are designed to look fashionable and provide warmth while remaining breathable and comfortable, rather than to ward off wind and rain. These are often made out of wool or yarn, knitted or crocheted. Ponchos with festive designs or colors can be worn at special events as well.