The Sweaty Betty High Shine High-Waisted Leggings (£38, originally £55) are exactly what our gym classes have been calling out for. Thanks to the four-way stretch of this buttery-soft fabric, they won't go see-through when you work out, and the high waistband is super comfortable and won't irritate your skin if you get sweaty. If you are after some added glitz to your workout, these shiny tights are for you. Our only request? More colours, please.