Flared jeans were all the rage in the 70s. By 1975, the flare had become extremely wide forming the large Bell Bottom pants the 70s are known for.
The Leisure Suit was an often guady fashion ensemble worn by men in the 70s. The leisure suit consisted of a shirt like suit coat with matching pants. It was usually accompied by a mostly unbuttoned shirt with a huge collar.
Leisure Suit Costumes available from BuyCostumes:
Baseball Jersey T-Shirts were a very popular fashion choice with the guys in the 70s. They often had an iron-on emblem of some kind on the front. Star Wars emblems were a popular choice in the late 70s.
Tank Tops were very prevelent in 70s Fashion for both men and women. Also popular for the girls were tube tops and crop tops tied in the front. Tank Tops with spaghetti straps were also very common in the 1970s.
Platform shoes were very popular on the disco floor. These shoes often had 5 or 6 inch heels!