Get on the level with a go-to pair of flats. Something to slip into when sneakers feel too sneaky, heels too hard, sandals too, well, seen. You know — loafers, ballet flats, pumps, or (if you’re not going further than couch to fridge) slippers! These are the brands making flush footwear sustainably: H&M with vegan leathers, Arket with chrome-free tanning, Madewell with recycled materials, and Birkenstock with natural fibres. Plus planet-friendly vintage from Vestiaire Collective, Vide Dressing and Beyond Retro.