Size & Measuring Guide
The information here is designed to help get you the right fit first time. To speak to someone who really knows what they are talking about, pick up the phone and call us on +44(0)845 070 5588 or email us at enquiries@duoboots.com - we’re here to help.You will need a meauring tape to measure your calf or foot width. If you don't have one, you can use our handy printable measuring tape here.
FITTED BOOTS
Measuring your legs for a perfect DUO fit. Here’s how…
Calf Measurements
- Find a tape measure (or download our handy printable measuring tape here) and take a seat. Place your foot flat on the floor in front of you. Tip: a piece of string and a ruler will do just as well!
- Wrap the tape (or string, ribbon, phone charger etc) around the widest part of your calf, leaving no gap, and measure to the nearest 1cm.
- Measure both calves and use the wider measurement when placing your order.
Boots Heights
Our website will provide you with the height of a boot when browsing as follows:

The height of the boot depends upon the style, your shoe size and your calf width.
The height measurement is taken from the bottom of the boot (not including the heel) to the very top of the boot.
In order to check that the height of a boot style will be suitable for you please follow this advice:
How to measure your leg height
- Sit on a seat with your knee at 90 degrees and your foot flat on the floor.
- Place the end of the tape measure touching the floor at the bottom of your heel.
- Measure straight up the back of your leg to the given boot height measurement. This will give you the approximate place that the boot will sit on your leg, (please note the boot should not sit right in the crease of the knee as this would be uncomfortable when the knee is bent).
- Most styles have a small elastic section at the top of the boot that allows at least 1cm stretch. Leather is a natural product and will give slightly as you wear them in.
- If you’ve ordered before, we’ll already know your previous size measurements, but because everyone changes shape from time to time, please check your measurements again each time you orde
- If you regularly wear tights or long socks with boots, wear them when you measure. Similarly if you plan to wear trousers tucked into your boots, wear trousers when you measure to ensure the fit is generous enough to accommodate them.
Boot height is the distance in a straight line from the bottom of your foot at the heel to the top of our boot. The height of our knee-length boots increases slightly with the shoe size, calf size and style of boot, ranging from 27cm to 51cm in a full length boot (more for over-the-knee styles). Each product page displays the approx height of the boot displayed. Select a shoe size and a calf width and the boot height will automatically display.
I have wide/narrow feet, will your boots fit?
We manufacture our boots with a standard C fitting shoe in calf widths of 30-40cm. In calf widths 40-50cm we manufacture the boots with a slightly wider shoe fitting. If you are unsure, pick up the phone +44 (0)845 070 5588 or email us enquiries@duoboots.com, we can advise on styles that might suit your foot.
I have wide/narrow ankles, will your boots fit?
The size of the ankle on many of our boots changes with the size of the leg and the foot. This offers you the kind of fit you would otherwise only find on a bespoke pair of boots. In most cases we can get the right fit for you first time. However, if your experience is that your ankles are particularly large or slim compared to your calves, please contact us with your ankle measurement before you order, so we can suggest styles that may fit your leg shape better.
I am buying from DUO for the first time, is there anything I should bear in mind?
- Narrow heels - when buying a pair of boots or shoes with a narrow heel, the pressure exerted on the heel is significant and the heavier the wearer, the quicker the rubber ‘heel tip’ will wear out. If you plan to wear narrow heeled boots/shoes over extended periods of time, be aware that you will need to replace the heel tips regularly and before the tips wear completely.
- Pointed styles - these boots or shoes can wear more quickly at the toe-piece. The tips should be replaced when they begin to look worn.
- Ankles - expect your boots to wrinkle around the ankle over time. There needs to be space between your ankle and the boot to allow for freedom of movement. If they were made too tight in this area they would not be wearable.
FITTED SHOES
Measuring your feet for a perfect DUO fit. Here’s how…
Take a fabric tape measure (or download our handy printable measuring tape here) and place it on the floor cm side down (Tip: a piece of string and a ruler will do the job just as well!)
- Put your foot flat and stand firmly on the tape measure.
- Measure around the circumference of your foot at its widest point. This is usually from the bone just below your big toe, to the bone below your little toe (N.B. The tape measure should be at a slight angle).
- Make a note of your measurement. Foot size can vary, so please measure both feet and use the wider measurement.
- In the Search by Size, click on your continental foot size and then choose your corresponding width fitting; ‘narrow’, ‘standard’ or ‘wide’. E.g. if you are a foot size 37 and your feet measure 21.5cm then you would be ‘narrow’.

DUO tips:
- If you usually wear socks or tights with your shoes, wear them when you measure your foot width.
Please quote your continental shoe size when ordering your DUO boots or shoes. We don’t yet offer half sizes so if you are between sizes please decide whether to go up or down according to your chosen style.
Still not sure which to choose? Pick up the phone and call us +44 (0)845 070 5588
I am buying from DUO for the first time, is there anything I should bear in mind?
- Narrow heels - when buying a pair of boots or shoes with a narrow heel, the pressure exerted on the heel is significant and the heavier the wearer, the quicker the rubber ‘heel tip’ will wear out. If you plan to wear narrow heeled boots/shoes over extended periods of time, be aware that you will need to replace the heel tips regularly and before the tips wear completely.
- Pointed styles - these boots or shoes can wear more quickly at the toe-piece. The tips should be replaced when they begin to look worn.

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