Staud EXCLUSIVE AT NET-A-PORTER. Thong sandals are a huge Spring '19 trend and our Global Buying Director Elizabeth von der Goltz highlights STAUD as a brand doing them particularly well. Inspired by the '90s, this black 'Keith' pair is made from glossy croc-effect leather and shaped with square toes. They're set on slender kitten heels, so you could even style them with a suit.