London-based sisters Kathryn, a jewellery designer, and Millie Allsopp, a former buyer, combine their love of elegant simplicity to create a hybrid of city and resort wear that eschews trends and transcends seasons. Despite a decade separating the sisters in age, they still found themselves buying the same pieces - only in different colours owing to their differing skin tones. With that in mind, USISI offers every piece in two colours.

The collection is designed in London and produced in fair trade factories in Vietnam and Turkey using all-natural fabrics. Dubbed "suitcase capsules," each is intended to act as the perfect wardrobe for a mini getaway. Pieces can be styled together or worn separately; to dinners, meetings, the beach and beyond.

USISI means ‘Sister’ in Xhosa, one of the official languages of South Africa, where Kathryn and Millie's mother grew up.