adidas by Stella McCartney Truepurpose Optime Training Leggings in Black. - size XS (also in S, M, L, XL) adidas by Stella McCartney Truepurpose Optime Training Leggings in Black. - size XS (also in S, M, L, XL) Self: 79% recycled polyester 21% spandex Pocket Lining: 73% recycled polyamide 27% spandex. Made in China. Machine wash. Pull-on styling with wide stretch waistband. Front and back logo detail. Perforated detail throughout. Item not sold as a set. 10 at the knee narrows to 8 at the leg opening. ADID-WP195. IB6792. Adidas by Stella McCartney offers women cutting age sports performance clothing they can work out in while still feeling good about the way they look. Not compromising style for performance, the balance is struck between fashion and sport.