Spotted on the likes of Gigi Hadid and Kendall Jenner, kitten heels are back - big time. This striking red version from Nº21 has been expertly crafted in Italy from glossy patent leather and features a sleek pointed toe with a retro-inspired buckle detail and a slingback strap with a comfortable padding at the ankle. Set on a 50mm heel and finished with a branded insole, pair yours with boyish blazers and flirty frocks alike - they're versatile like that.