Own a piece of countercultural entrepreneurship history! RARE Authentic vintage 1980s dark gray "Chi Pants" brand women's jeans with gusset crotch, size 12, slim fit. Even rarer, these nearly 40 year old pants are in like-new condition. The brand of clothing called Chi Pants were designed with a gusset crotch for freedom of movement. The waist is half elastic; pants have a classic jeans zip front and slash pockets. Waist 30 inches; rise 13.5 inches from center of gusset to top front of waistband; inseam 34.25 inches from center of gusset to bottom hem of pant leg. To learn more about Chi Pants and what make them unique, check out https://www.youtube.com/watch?v=_PPqRsVJHV0 The pants were wildly popular and successful, until the San Francisco earthquake shut down the company in 1989. Note, I have several more used pairs; this pair is in the best condition.