The Birkenstock Zermatt Rivet Slippers in size EU 41, UK 7.5 are a stylish and comfortable option for anyone looking for a casual slip-on slipper. The ecru colour and narrow width make them perfect for year-round wear, while the wool upper material adds a touch of luxury. With a flat heel style and slip-on design, these slippers by Birkenstock are a practical and fashionable choice for any season. Narrow Footbed. Brand new in box