SIZ

SIZ is an ethical, sustainable European designer clothing label for women, founded in Sesimbra, Portugal in 2016 by twin sisters Raquel Rodrigues and Sofia Rodrigues. The sisters studied fashion together at the University of Lisbon's Faculty of Architecture and launched the brand after their internships, wanting to prove that sustainable fashion could be creative, colourful and fun. Its style pairs "clean and crafty" in an urban, casual look. The collection includes dresses, tops, shirts, trousers, skirts, jackets, jumpsuits and coordinated sets. Signature pieces include striped sets introduced in 2020 and a thin-strap summer dress reinterpreted every year. Garments are made in Portugal: the sisters design, make patterns, cut and sew in their Sesimbra atelier, working with local seamstresses in small batches produced to the rhythm of sales. Each yearly collection is built around an environmental or social cause, from climate change to ocean pollution and overconsumption. Much of the clothing uses deadstock fabrics, with organic and natural fibres used when deadstock runs short, while a take-back programme keeps garments out of landfill. SIZ has been profiled by the Portuguese magazine NiT and A Sustainable Closet, and in 2026 opened a two-month pop-up in Lisbon.