Finding the perfect pair of UGG boots for women isn’t just about choosing your favorite style or color — getting the right size is just as important. UGGs are famously cozy and snug, but sizing can vary depending on the model and the materials used. In this guide, we’ll walk you through everything you need to know about UGG boot sizing so you can shop with confidence.
Why UGG Boot Sizing Matters
Unlike traditional structured boots, UGG boots are made with plush sheepskin lining that naturally molds to your foot over time. Choosing the wrong size can lead to discomfort, heel slippage, or an overly tight fit, especially before the lining compresses.
Do UGG Boots Run True to Size?
UGG boots generally run true to size, but there are a few caveats depending on the model:
- Classic UGGs (like the Classic Mini, Ultra Mini, and Classic Short): These tend to feel snug at first but stretch slightly after a few wears. Most people are happy with their regular size.
- UGG Adirondack & Weatherproof Styles: These may run a bit small due to the added lining and structure. Consider sizing up half a size if you plan to wear thick socks.
- UGG Slippers: Many customers recommend sizing down if you’re between sizes, as these can stretch more quickly.
Pro Tip: UGG boots are designed to be worn without socks — the sheepskin lining acts as natural insulation and wicks moisture.
UGG Women’s Size Chart (US to International)
| US Size | UK Size | EU Size | Foot Length (inches) |
|---|---|---|---|
| 5 | 3 | 36 | 8.66 |
| 6 | 4 | 37 | 8.86 |
| 7 | 5 | 38 | 9.25 |
| 8 | 6 | 39 | 9.45 |
| 9 | 7 | 40 | 9.84 |
| 10 | 8 | 41 | 10.04 |
| 11 | 9 | 42 | 10.43 |
How to Measure Your Foot for UGG Boots
- Place a sheet of paper on the floor and tape it down.
- Stand barefoot on the paper with your heel against a wall.
- Mark the longest part of your foot (usually the toe).
- Measure the length from the wall to the mark.
- Repeat for both feet and use the larger measurement.
Match the measurement with UGG’s size chart to determine your best fit.
Sizing Tips for Narrow or Wide Feet
- Narrow feet: Stick to your regular size. The sheepskin will contour to your foot with wear.
- Wide feet: UGG doesn’t officially offer wide sizes in most styles, but the flexible materials accommodate some width. You may want to go half a size up for extra comfort.
Should You Size Up or Down?
- If you’re between sizes, most users recommend sizing down for Classic UGGs since the lining compresses.
- For structured or waterproof styles, sizing up may be more comfortable, especially if you wear socks.
How UGGs Should Feel When New
Your new UGG boots should feel snug but not tight. Your toes can lightly touch the front, and the heel should stay secure. After a few wears, the sheepskin lining will compress by about half a size, creating a custom fit.
Final Tips for the Perfect UGG Fit
- Try them on at the end of the day when your feet are slightly swollen — this gives you the most accurate sizing.
- Wear them indoors first to test the fit. Most retailers offer returns if the soles are clean.
- Consider insoles or heel grips if your boots feel slightly loose after breaking in.
Conclusion
Finding the right size in UGG boots is key to enjoying their famous comfort and warmth. With a little measurement and awareness of how different styles fit, you can confidently choose the perfect pair. Whether you’re going classic or waterproof, getting the fit just right ensures your UGGs will be a cozy companion all winter long.
