How do you make one of our most iconic styles original to you? Just by being yourself. It also helps that this version of the adidas SST track jacket has an unexpected two-piece design for total freedom and play. Wear it as a vest. Wear it as a bolero. Show off both pieces together. The design lines may be familiar, but how you style it is totally your choice. A minimum of 70% of this product is a blend of recycled and renewable materials.