Punk started in London in the 1970s. The initial idea of punk in the 70s was that it was a revolt from mainstream music. Basic punk trends in the 70s included offensive t-shirts, ripped jeans, leather jackets, customized blazers, controversial images, fishnet stockings, spiked jewelry, safety pins and much more. Dyed cropped messy hair was a staple for punk in the 70s. (Harris, 29 Things You Didn't Know About Punk Style)
The 1980s is when Punk was exemplified by bands such as Black Flag, Minor Threat, and Fear. New trends in the 80s emerged such as Dr. Martens, combat boots, bandanas, bleached jeans, tartan kilts, studded belts, plaid flannel shirts, denim vests, etc. Hairstyles in the 1980s included shaved, spike, or mohawk hair that was either bleached or dyed a bright color. (Harris, 29 Things You Didn't Know About Punk Style)
Present day punk hasn't changed much in the past four decades. The only changes are that the hairstyles have toned down and it's turned more into street grunge. Punk is also focused more on accessories. Some punk trends today are studded leather and denim jackets/vests, plaid flannel shirts, bleached cutoff shorts, combat boots, Dr. Martens, graphic tees, tartan skirts and pants., and Jeffery Campbell platforms. Punk is still in the innovation stages.