Adidas by Stella McCartney reimagines the white Ultraboost trainer with this cut-out design that’s inspired by a running sandal silhouette. The neoprene upper wraps around a Primeknit sock that’s trimmed in orange - nodding to the designer’s influence – and drawcord laces crossed on the vamp are intended to provide extra support. Slip these on with a coordinating sweatshirt and track shorts for a fashion-forward run.