Pockets on activewear are hard to come by – as they are on most women’s clothes generally ... with a phone strapped to your leg, these Adidas leggings with a hidden pocket on the back are ...

Snag staples from Adidas, Lululemon ... these Old Navy leggings are just $24 at the start of the new year. The sale price includes all six colors, available in sizes XS–4X.