Hypercolor t-shirts were popular in the late 1980s and early 1990s. They were known for changing color based on temperature, which made them a unique and trendy fashion statement at the time.

I am pretty sure they don't even sell Hyper-Color Tees anymore. They are considered collectors items.

a color changin jacket such as the older hypercolor jackets that change color to your body heat? i checked into it and it looks like they got them on e bay. hope this helps

Some of the latest fads in 1991 included slap bracelets, acid-washed denim, and Teenage Mutant Ninja Turtles merchandise. Additionally, scrunchies, Hypercolor clothing, and rollerblading were popular trends during this time.

Hiking boots, shirt clips, Duck Head khakis and hammer pants were hot in the fall of 1990. In the spring of 1991, people were very much into Vanilla Ice like they were in the fall of '90. British Knights and Le Coq Sportswear were the sneakers to have and not ProWings. Zubaz was new to the world, and Skidz were even more popular amongst the "Teen Beat" crowd. Hermit crab necklaces were blowing up in certain areas. The most impressive trend in 1991 was the "Hypercolor" trend. There were Hypercolor shorts and shirts. It was unisex, but people were still wearing Coca-Cola sportswear. Big hair was still big in many circles along with mullets. Both young and old men were wearing Hi-top fades with the carvings or ponytails in the back. Desert Storm shirts were everywhere you looked. There were the "Stormin' Norman (Schwarzkopf)" and Anti-Saddam shirts. Black Bart Simpson shirts could still be purchased at flea markets and Harlem stops. Teenage Mutant Ninja Turtles 2: Secret of the Ooze was an excellent time capsule for those days. During the summer, young ladies could be found wearing stick-on earrings and/ or Tiny Toons shirts. "Airbrushed" anything from the mall was extremely "in" with all crowds. Young men were wearing cargo acid wash Bugle Boy jeans with those Oakley frogskins. Of course, teens were wearing tennis visors and neon shorts. Boy bands such as Hi-Five, Special Generation, and Riff were around, but ABC (Another Bad Creation) were the group the young ladies preferred. You could hear loud rap music playing from boomboxes. Yeah, young men were still walking around with them in certain areas. Blazers were always popular in the early 90s (1990-1992 only). White elastic shorts were worn by everyone and their Mothers. The early 90s were the Tennis era, so Keds were the shoe of choice for young ladies. The early 90s (1990-1992) were the dance hall days, and men wore pants they could do "The Running Man" in. The show "Parker Lewis Can't Lose" really hit its peak in this year. Every young man was wearing the "Parker Lewis paisley", which was a rayon shirt with lots of designs on it. Tribal prints were being sold at every department store from 1989 to 1993. Reebok Pump sneakers were really cutting edge for this time. You could see Pumps and references to them on shows like "Wake, Rattle and Roll", "The Simpsons" and "A Different World".Reebok pumps scream early 90s just like "Dwayne Wayne flip-up glasses. Gotcha shirts were quite the commodity at any elementary school. Surf shop apparel (Panama Jack, T& C Surf Shop, and Vuarnet) were the bees knees all through the 1989 to 1992 period. Guys were making Dan Quayle jokes, while ladies were into Tommy Puett (Life Goes On show). White Overalls or Shortalls were what the females wore all summer long. It was rad (people did not say cool) to wear your overalls with one strap down from beginning to end in this year. That fad showed up in the summer of 1990. Mostly young African guys were sporting the" Kwayme Polka Dot" button-up shirt. Those shirts were perfect complemented by the leather African or Peace sign medallions. The fall of '91 was slightly different from the other seasons of the year. 1992 was starting to happen. The fall of '91 was still its own era regardless of 1992 coming in. "Four-tone button up shirts" were quite modernistic to us in this time. These shirts had black sleeves and collars. The front of this button-up sometimes had two squares on top and a wide rectangle at the bottom. All shapes were going vertically. There were also shirts like this which were not button-ups. They had the wide rectangle going horizontally while the two squares went that way too. Silk shirts were all of the rage around this time with the same crowd that wore "four-tone button-ups". Tough guys in 1991 were imitating the N.W.A. with black anything. They had the Georgetown sweatshirts, beepers, L.A. Kings sweaters, or Starter gear. In '91, the men mainly wore dark Starter jackets (look at Grandmaster B on Married With Children). They were not the only ones wearing black during the H.W. Bush era. Department stores were carrying black shirts with neon graphics that were aimed at children. The George Michael wannabes wore jean jackets that matched their jeans with a plain white t-shirt. This look was inspired by the music video for "Baby Baby" by Amy Grant. The look of the tough crowd differed from that of the Hip-hop crowd. The Hip-hop fans were wearing the big backwards Kangol Herringbone hats and trenchcoats. They mostly looked up to rappers like "Kool Moe Dee" over the mainstream rappers like "LL Cool J". 1991 was the year of parents and older generations complaining about rap in general. 1991 was a large part of the "Late 80s Early 90s era", so to see someone wearing a "Varsity Jacket, Fido Dido, and Button Your Fly shirt" was not out of the ordinary. Rat tails and tapered jeans were also standard for those times. Young ladies wore tube and slouch socks that matched their top. Scrunchies doubled as bracelets in this year too. In the fall of 1991, a lot of stores such as "Merry Go Round" were starting to market "Cross Colours" more. "Cross Colours" defined 1992 far more. Pixie haircuts were dominant in different cities(think of Doogie Howser's Mother around this time). More guys were starting to wear buzz cuts and under cuts at high schools. It was quite hip to own a Discman if you were a Senior in high school in the fall. 1991 was when the early 90s were starting to look more "New Age" to everybody. Super Soakers went under that name in this year. Pop Secret "Pop Qwiz popcorn" (colored popcorn) was released just in time for the fall. Because TGIF on the network ABC was still new to all crowds, Steve Urkel was a knockout. Children, of course, had their parents purchase anything with Steve Urkel or Waldo (of Where's Waldo fame) on it. 1991 changed the game in some ways. In this year, people in inner-cities were coming out against Cocaine in greater squads. They wore "Crack Kills" shirts or any "Keith Harring" apparel (such as painter hats and/or shirts). Keith Harring used his art to communicate his ideas and thoughts. Keith Harring was already respected by many in different neighborhoods before his death. Like most artist, he was acknowledged more after his death. Batman logo shirts were still being worn by comic book fans and children awaiting the sequel to the 1989 Tim Burton classic. There was a lot of blues in the fall of 1991. People everywhere seemed to take a liking to blue raspberry Blow Pops and Pepsi. Adidas sportswear was new to the world. Leggings and neon suspenders were not absent at this time either. In our defense, people did not know what the Nineties were yet. The clothing articles we know the Nineties for were not around just yet. Because 1991 was the middle year of the early 90s, it had the best of both worlds. Country music was really starting to take off. It was extremely trendy to pull off the Garth Brooks look in the country. Overall, 1991 was not too different from any year before then. Polo shirts and gray sweatshirts were being worn by everyone, but there were different colors this time around. There were lighter pink polos for men in this year. 1991 was like a more extreme version of the 80s, but the "90s" 90s (with Bill Clinton) was not too far behind.