Heels with Track pants is next level athleisure. If you are afraid of diving this far in, its easiest to start with a pair of simple sneakers like adidas Stan Smiths. They are classic and literally go with everything. The reverse of heels and track pants is a suit and sneakers. You can also try a simple track or bomber jacket layered into your wardrobe. There are so many sporty elements to incorporate into your look, but my favorite is definitely sneakers.