Bunny Boot Sizing Guide: How to Get the Perfect Fit
Bunny Boots come in men's sizes 4 to 15 and women's sizes 5.5 to 16.5, and the right size leaves room for a wool sock and wiggling toes while keeping your heel in place.
Getting that fit right is what lets a vapor barrier boot do its best work. A good fit leaves room for your sock to insulate and keeps your foot steady, so you stay warm and comfortable all day.
This guide covers how the boots fit, how sizing works across the lineup, and how to pick between sizes. If you're new to the boot, start with Bunny Boots 101: The Complete Guide to Extreme Cold Weather Boots.
What sizes do Bunny Boots come in?
Every Bunny Boot VBX model is made in men's sizes 4 through 15 and women's sizes 5.5 through 16.5, in whole-size steps. Men's sizes step in whole numbers, and women's sizes are the half-size equivalents (5.5, 6.5, and so on), so there are no sizes in between.
That covers the full lineup: the VBX MAX, VBX LITE, VBX NEO, and VBX Composite. The range is the same across all four, so you don't have to hunt for your size in one model and give up on another. If you wear a size 12, for example, you're covered in each of them.
The size chart below shows how men's and women's sizes line up.
How should Bunny Boots fit?
Bunny Boots run true to size, so start with your usual size. A well-fitted boot holds your heel down, gives your toes room to move, and fits over your wool sock without pressing anywhere.
Try them on the way you'll wear them: with the sock and insole you plan to use, and laced up. Then check three things.
- Heel: it should stay put when you walk. A heel that lifts or slides is a sign the boot is too big.
- Toes: you should be able to wiggle them freely. If they touch the end of the boot, go up a size.
- Sides and top of the foot: no pinching, and no pressure points under the laces.
Does sizing change between Bunny Boot models?
No. Every Bunny Boot VBX model runs true to size and fits the same calf, so your size in one is your size in all. The models differ in boot height and materials.
- VBX MAX and VBX LITE: both follow the standard size range. Start with the fit checks above.
- VBX NEO: the neoprene collar flexes as you move, which helps the fit around your calf. Check that the collar sits comfortably over the pants or base layers you plan to wear.
- VBX Composite: the composite toe cap gives the toe area a fixed structure, so check toe room carefully when you try them on, with your work socks.
What is the Bunny Boot size chart for men's and women's sizes?
Men's Bunny Boots run from size 4 to 15, and women's run from 5.5 to 16.5, so most adults will find their size, including larger sizes like a men's 12 or 13.
Find your foot length in the chart, then order the matching size. For the most accurate measurement, print our size chart at 100% (turn off "fit to page") and single sided, then measure your foot against the Brannock-based guide. Printable size charts: Men’s sizes, Women’s sizes
Men's size chart
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 6 | 39 | 5.5 | 9.25" | 23.5 |
| 6.5 | 39 | 6 | 9.5" | 24.1 |
| 7 | 40 | 6.5 | 9.625" | 24.4 |
| 7.5 | 40-41 | 7 | 9.75" | 24.8 |
| 8 | 41 | 7.5 | 9.9375" | 25.4 |
| 8.5 | 41-42 | 8 | 10.125" | 25.7 |
| 9 | 42 | 8.5 | 10.25" | 26 |
| 9.5 | 42-43 | 9 | 10.4375" | 26.7 |
| 10 | 43 | 9.5 | 10.5625" | 27 |
| 10.5 | 43-44 | 10 | 10.75" | 27.3 |
| 11 | 44 | 10.5 | 10.9375" | 27.9 |
| 11.5 | 44-45 | 11 | 11.125" | 28.3 |
| 12 | 45 | 11.5 | 11.25" | 28.6 |
| 13 | 46 | 12.5 | 11.5625" | 29.4 |
| 14 | 47 | 13.5 | 11.865" | 30.2 |
| 15 | 48 | 14.5 | 12.1875" | 31 |
| 16 | 49 | 15.5 | 12.5" | 31.8 |
Women's size chart
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 4 | 35 | 2 | 8.1875" | 20.8 |
| 4.5 | 35 | 2.5 | 8.375" | 21.3 |
| 5 | 35-36 | 3 | 8.5" | 21.6 |
| 5.5 | 36 | 3.5 | 8.75" | 22.2 |
| 6 | 36-37 | 4 | 8.875" | 22.5 |
| 6.5 | 37 | 4.5 | 9.0625" | 23 |
| 7 | 37-38 | 5 | 9.25" | 23.5 |
| 7.5 | 38 | 5.5 | 9.375" | 23.8 |
| 8 | 38-39 | 6 | 9.5" | 24.1 |
| 8.5 | 39 | 6.5 | 9.6875" | 24.6 |
| 9 | 39-40 | 7 | 9.875" | 25.1 |
| 9.5 | 40 | 7.5 | 10" | 25.4 |
| 10 | 40-41 | 8 | 10.1875" | 25.9 |
| 10.5 | 41 | 8.5 | 10.3125" | 26.2 |
| 11 | 41-42 | 9 | 10.5" | 26.7 |
| 11.5 | 42 | 9.5 | 10.6875" | 27.1 |
| 12 | 42-43 | 10 | 10.875" | 27.6 |
If you're between sizes, see the insole tip below before you decide.
What should I do if I'm between sizes?
Because there are no sizes in between, add the 1/2 Downsize Bunny Boot Insert when you're between sizes. It works in every Bunny Boot model.
- The 1/2 Downsize Bunny Boot Insert: our fix for the in-between size, and it works in every Bunny Boot model. Order the larger of the two boot sizes, then add the insert in the same size as the boot for a fit a half size smaller.
- Wool socks: wear one good wool sock, like the Bunny Boot Wool Sock we designed for these boots. A thicker sock won't add warmth you need, since the boot provides it, and it takes up room that can make the fit tight.
- True Fit insoles: the standard insole is vented and hydrophobic, so it lets air move under your foot and doesn't hold moisture.
Try the pair on with your sock and the insole you plan to use before you decide. For more on what to wear inside the boot, read What to Wear With Bunny Boots: Socks, Insoles & Gaiters Explained.
Ready to pick your size?
Choose the size that holds your heel, leaves your toes free, and fits over one wool sock, then confirm it against the size chart above.
Still deciding which model suits you? Read Are Bunny Boots Too Extreme for Everyday Winter? New Styles for Daily Life to compare the styles, or head back to Bunny Boots 101: The Complete Guide to Extreme Cold Weather Boots for the full lineup.
