The SST track suit was designed in 1979 for tennis training. It quickly became an iconic adidas street style. These track pants stay true to the original design with a slim fit and tapered legs. They're made in the original sporty polyester fabric that's smooth inside and out and just slightly stretchy. The Adicolor collection: inspired by adidas heritage, Adicolor is authentic but modern. Iconic details: Signature 3-Stripes and a Trefoil logo show off adidas pride.