The upper featured a more sock-like fit derived from 1991's Air Huarache sneaker. Nike employed a new manufacturing processes to provide the larger and more exposed air unit greater protection. Released in 1993 as the Air Max 270, the Air Max 93 introduced a 270-degree air unit and colored air units to the range. The technology was later used in the Air Force 180 sneaker. Released in 1991, the Air Max 180 featured a larger air unit visible through the outsole. Images of the customized sneakers have been seen around the Department of Nike Archives, and feature AIR PRES branding along with what appears to be a unique colorway. Nike specially designed a pair of Nike Air Max 90s for President George H. The upper featured Duromesh, synthetic felt and synthetic leather. The original colourway of white/black/cool grey with infrared was chosen to exaggerate the thickness of the sole air cushion. Known as the Air Max III until 2000, when it was reissued taking its name from the year of its launch. Nike 'Kiss My Airs' advertisement for the Air Max 90 in Warsaw, Poland, March 2017 Re-released in 2007, Nike has continued to release additional colorways. Released in 1989 as the Air Max II, the Air Max Light weighed less than the original, achieved by replacing the forefoot polyurethane midsole with one made of EVA foam. The Air Max 1 continues to enjoy significant popularity with sneaker enthusiasts, and Nike re-releases the model with original and new exterior designs ('colorways') on a regular basis. Its upper was composed of nylon and synthetic felt, with a leather version being released in 1988. It was marketed for running, which would continue to be the case for new Air Max designs until 2018's Air Max 270. Released in 1987 as simply the Air Max, the Air Max 1 was the first shoe ever to employ Max Air technology. Even used shoes were in demand, and fakes also became a problem. The extremely inflated prices of the shoes led to a rash of muggings in the normally-peaceful country wherein Air Max wearers were attacked and their shoes were stolen. In the mid-1990s the line, particularly the Air Max 95, experienced such a surge of popularity in Japan that it led to a phenomenon known as 'Air Max hunting'. In some areas of LGBT sub-culture in Europe, certain Air Max models are coveted among foot, sneaker and sportswear fetishists. The line of sneakers is popular amongst many subcultures, for example hip hop and gabber. The size, design, and number of air units varies within the product line the 'retro' Air Max 1 simply includes one small unit under the heel, while in the contemporary Air VaporMax, effectively the entire midsole is composed of air units with no conventional foam present. The effectiveness of the technology for this purpose is disputed nevertheless, the shoes enjoy consistent popularity, especially among sneaker enthusiasts and collectors. Referred to as 'Air units' or 'airbags,' their stated purpose is to provide superior cushioning to traditional foam while also reducing weight. As the name indicates, all Air Max shoes feature one or more translucent pouches of pressurized gas embedded in the midsole and visible from the outside of the shoe. In 1979, he patented a design using polyurethane sacs filled with pressurized inert gas, and Nike has been using some version of this design ever since. Frank Rudy, an aeronautical engineer, first brought the idea of an air-cushioned sole to Nike in 1977. Air Max IV/BW in its original 'Persian Violet' colorway

Air max 97 colorways