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How to measure your shoe size at home

Working out how to measure your shoe size at home can be tricky. You find some shoes online, and add them to your shopping cart, but wait what shoe size do you actually need? We’ll show you a simple, quick way to calculate the correct shoe size for your foot. Just grab a piece of paper and a pencil.

How do I figure out the right shoe size?

On the one hand, shoe size depends on the shoe's manufacturer; but on the other hand, it depends on the length of your individual foot. Since many people have one foot that’s slightly bigger than the other, it’s important to measure both feet. The foot length (you might want to choose the longer foot if applicable) should then be compared with the size chart of your shoe’s manufacturer. Here you can find a size chart for our Merino Shoes and Slippers: Giesswein Size Chart.

Here’s how to measure your shoe size:

  1. Get an A4 sized piece of paper, a pencil and a ruler.

  2. Place one foot on the piece of paper (barefoot is best.) Your heel should line up exactly with the edge of the paper.

  3. Trace your foot with the pencil. While doing do, make sure to keep your full weight on your foot to keep the correct outline. You can also ask someone to help you out.

  4. Repeat with the other foot.

  5. Measure the distance in centimeters between the paper’s edge and the longest toe.

  6. Finally, compare your measurement with our size chart - voila! You’ve got your shoe size. Our tip: if you land between sizes and are considering a half size, it’s best to choose the smaller size if you’re buying any of our Merino Shoes. This is because the 3D stretch Merino wool will gradually stretch and fit the form of your individual foot. If you’re purchasing our Eco Ballerinas, we recommend that you choose your standard shoe size.

Giesswein Sizing Tool

For our Merino Shoes, we’ve created a special Sizing Tool. Just print out our template in its original size, place your foot on top, and you’ll find out which size is best for you.

When’s the best time of day to buy/try on shoes?

Ideally, shoes should be tried on for size in the afternoon or early evening. This is because throughout the day, our feet swell slightly and become a bit bigger. By trying on shoes in the evening, you’ll make sure that they also fit you comfortably at the end of the day - which means no uncomfortable rubbing or pinching.

Giesswein Merino Sneaker

Shoes are our biggest passion, which is evident in the quality and unique level of comfort found in our footwear. Our Merino Wool Sneakers are light, flexible and unbelievably comfortable. Through our unique 3D Knit technology, our shoes mold to fit your individual foot. Plus, their composition of soft, merino wool makes sure that your feet stay comfortably warm in the winter—and fresh and cool in the summer. Our specially-developed sole system, which uses feather-light EVA material, is slip-free and shock absorbing.

What are you waiting for - measure your foot, find the perfect shoe size and order your new pair of men’s trainers or women’s trainers.

how to measure your sneaker size

Giesswein Size Chart: find the correct shoe size for your Merino Shoes (US, EU, UK)


Length in centimeters EU UK US
22,7 36 3 5
23,2 37 4 6
24,2 38 5 7
24,7 39 6 8
25,5 40 6,5 8,5
26,5 41 7,5 9,5
27 42 8 10



Length in centimeters EU UK US
25,5 40 6,5 7
26,5 41 7,5 8
27 42 8 8,5
27,5 43 9 9,5
28,5 44 9,5 10
29 45 10,5 11
29,5 46 11 11,5
30 47 11,5 12
30,5 48 12,5 13