Upcycling isn't just a passing fad for Marine Serre - it's a fundamental aspect of her design ethos. The French designer puts upcycled materials front and centre in her creative process. Case in point: these boxer-style shorts. Made from upcycled cotton and hemp and featuring lace topstitched panels at the sides, they're finished with initials at the leg, inspired by the charm of embroidered pillowcases.