Once hugely popular, Gap T-shirts and sweatshirts have lost their cache.

\"Whether due to fast fashion, Internet or something greater, today’s consumers want fashion and individuality,\" said Siegel. \"Logos have faded as individualism has grown.\"

1989, 1996: Turtlenecks

Gap probably can't take sole credit for popularizing the turtleneck in the 1980s and early 1990s, but the company certainly had a presence in the space.

In 1989, Gap's successful \"Individuals of Style\" ad campaign featured unconventional models, such as writer Joan Didion in 1989 with her late daughter Quintana Roo in black turtlenecks.

Here's Joan Didion's first campaign with @Gap in 1989! Chic! Many thanks to our follower @kelleyhoffman for the find! pic.twitter.com/erTrVrYiNm

— V Magazine (@vmagazine) January 8, 2015

Sharon Stone wore a charcoal gray Gap turtleneck to the Oscars in 1996:

\"PHOTO:
Kevin Mazur/WireImage/Getty Images
PHOTO: Sharon Stone walks the red carpet at the 68th Annual Academy Awards, March 25, 1996.
>

Late '90s: Khakis

Gap's most iconic moment was its khakis ad campaign, according to Weishaar.

Peridis agreed, adding that the company's corduroys were also a big hit.

\"As a child who grew up in the '80s and '90s, I can still hum the Gap khaki and cords ads,\" Peridis said, noting a 1999 ad set to the tune of Donovan's \"Mellow Yellow,\" which happened to feature actress Rashida Jones ...

... and James Clarke's \"Blow Up a Go-Go\" in the same time period:

2004: Sarah Jessica Parker

Gap decided to showcase \"Sex and the City\" star Sarah Jessica Parker in a few ads to celebrate \"the expression of individual style,\" including its \"How Do You Wear It?\" campaign for fall 2004. The company went beyond just colorful basics and accessories with shrunken jackets and funky cardigans. The company also produced an ad called \"Pretty Khaki.\"

Though some enjoyed the appearance of glamorous star Parker in Gap ads, critics, including the research firm Fashiobi, said the pairing was a poor match between a simple brand label and its commercial spokesperson.

\"PHOTO:
Gregory Pace/FilmMagic/Getty Images
PHOTO: Sarah Jessica Parker signs autographs for the crowd at a promotional event for Gap's "How Do You Wear It" campaign on Sept. 9, 2004.
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