A Baja Jacket, Baja Hoodie, Baja Sweatshirt or Drug Rug refers to a Mexican

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 pullover

Pullover

Pullover may refer to:* Pullover Productions, UK producer of the children's television programme Pullover in the early 1980s* Sweater or hoodie, a piece of clothing "pulled over" the head instead of buttoned or zipped-up...

 with a single large pocket on the front. Baja Jackets are made with a variety of different materials most often cotton

Cotton

Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium. The fiber is almost pure cellulose. The botanical purpose of cotton fiber is to aid in seed dispersal....

, acrylic

Acrylic fiber

Acrylic fibers are synthetic fibers made from a polymer with an average molecular weight of ~100,000, about 1900 monomer units. To be called acrylic in the U.S, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate...

, and polyester

Polyester

Polyester is a category of polymers which contain the ester functional group in their main chain. Although there are many polyesters, the term "polyester" as a specific material most commonly refers to polyethylene terephthalate...

. They are very popular in the Hippie

Hippie

The hippie subculture was originally a youth movement that arose in the United States during the mid-1960s and spread to other countries around the world. The etymology of the term 'hippie' is from hipster, and was initially used to describe beatniks who had moved into San Francisco's...

 subculture and among fans of post-hair metal. However, in recent years, they have been adopted to simply become hoodies with some alterations like a zipper running up the middle added.