This standout leotard from adidas by Stella McCartney is inspired by 70s and 80s workout wear, and the idea of modular dressing. Crafted from adidas Primegreen – made with 73% recycled materials – the leotard features cutouts at the sleeves, back and waist, and is anchored with articulated thumbholes on the cuffs to keep sleeves in place as you train.