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Sizing Help
These Regular Fit Birkenstocks are the most common width Birkenstock offer. However, for those with a slimmer foot, Birkenstock do offer a Narrow fit option in most models.
Size on Birkenstocks is in EU to help really dial in the right footbed so if you need any help with which size or footbed, or you are not sure if you need narrow or regular please see our size guide below
Product Description
- Premium wool felt upper delivers lasting warmth
- Ergonomic cork-latex footbed supports every step
- Effortless slip-on fit with bold, masculine design
Experience unmatched comfort and rugged style with the Birkenstock Zermatt Wool Slippers for men and women in Dark Blue. Designed for those who appreciate quality and resilience, these slippers feature a high-grade wool felt upper that wraps your feet in warmth—perfect for chilly mornings or relaxing nights in. The deep blue colour lends a bold, masculine touch, while the sturdy construction and subtle stitching details evoke a sense of classic durability.
Engineered for all-day support, the contoured cork-latex footbed adapts to the unique shape of your foot, offering targeted arch support and a secure heel fit. The natural leather insole and soft suede lining ensure a luxurious feel, drawing moisture away to keep your feet dry and comfortable no matter how long you lounge. The easy slip-on style lets you move from room to room or step outside in seconds, making these slippers as practical as they are stylish.
Built with a robust latex outsole for dependable traction, the Birkenstock Zermatt Wool Slippers are ideal for both indoor comfort and brief outdoor ventures. The removable footbed allows for personalisation, so you can tailor your comfort to your needs throughout the year. Trust Birkenstock for a blend of enduring comfort and masculine flair, and make every day at home feel like a retreat.
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Birkenstock
Birkenstock stands for excellent comfort, high functionality and extraordinary quality. Birkenstock create products like “Arizona” that make the lives of their customers easier and better. Birkenstock invented the footbed and has also shaped the meaning of the term “footbed”, which is so common today. It’s not only a unique, revolutionary product concept that paved the way for a completely new market. It’s also a core idea and a reference point for everything that they do. Come into store or shop online and discover the comfort of the Arizona, coming in different range of colours, shearling and leather.
Size Guide
When sizing Birkenstock sandals, it’s important to consider both length and width for a comfortable fit. Start by measuring your foot length from heel to toe, then compare it to the Birkenstock size chart provided to select the right size. Birkenstock sandals are known to run occasionally slightly larger, so you may need to size down if you’re between sizes.
In terms of width, Birkenstock offers two fit options: narrow and regular. Narrow fit is designed for those with slimmer feet, while the regular fit suits average to wider feet. To determine which width is best for you, use the size guide below or our main size chart. If you already own a pair of Birkenstocks and are unsure what your current pair are, look at the footbed icon inside the sandal. A solid footprint indicates a regular fit, while an outlined footprint represents a narrow fit. It's essential that your foot fits comfortably within the contours of the footbed, with no part of your foot hanging over the edges. This ensures optimal support and comfort.
How To Read Birkenstock Footbed

1. Width Symbol: there are two footbed - narrow and regular. Regular width symbol is an open foot and Narrow width symbol is a filled-in footprint as shown above.
2. Size: The big number is the EU Birkenstock size. The above footbed shows a "Size 38".
3. Leather or Vegan Symbol: These change depending on the model. A green logo and letter indicates Vegan Friendly and Blue is for there Soft Footbed
Size Chart
| UK Size | EU Size | Length (mm) | Width (mm) |
|---|---|---|---|
| 3.5 | 36 | 226 - 230mm | 87 - 91mm |
| 4.5 | 37 | 231 - 240mm | 90 - 98mm |
| 5 | 38 | 241 - 245mm | 92 - 100mm |
| 5.5 | 39 | 246 - 250mm | 94 - 102mm |
| 7 | 40 | 251 - 260mm | 96 - 104mm |
| 7.5 | 41 | 261 - 265mm | 97 - 105mm |
| 8 | 42 | 266 - 270mm | 98 - 107mm |
| 9 | 43 | 271 - 280mm | 101 - 109mm |
| 9.5 | 44 | 281 - 285mm | 103 - 111mm |
| 10.5 | 45 | 286 - 290mm | 105 - 113mm |
| 11.5 | 46 | 291 - 300mm | 107 - 115mm |
| 12 | 47 | 301 - 305mm | 109 - 117mm |
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