UGG Classic Ultra Mini Boot
Shoe Size Guide
Find your perfect fit
International Size Conversion
Compare European, UK and Australian shoe sizes to find your ideal fit.
| EU | UK | AU | Foot Length (inches) |
|---|---|---|---|
| 36 | 3 | 5 | 8.7 |
| 36.5 | 3.5 | 5.5 | 8.9 |
| 37 | 4 | 6 | 9.1 |
| 37.5 | 4.5 | 6.5 | 9.3 |
| 38 | 5 | 7 | 9.4 |
| 38.5 | 5.5 | 7.5 | 9.6 |
| 39 | 6 | 8 | 9.8 |
| 39.5 | 6.5 | 8.5 | 10.0 |
| 40 | 7 | 9 | 10.2 |
| 40.5 | 7.5 | 9.5 | 10.4 |
| 41 | 8 | 10 | 10.6 |
| 41.5 | 8.5 | 10.5 | 10.8 |
| 42 | 9 | 11 | 11.0 |
| 42.5 | 9.5 | 11.5 | 11.2 |
| 43 | 10 | 12 | 11.4 |
| 44 | 11 | 13 | 11.8 |
| 45 | 12 | 14 | 12.2 |
| 48 | 13 | 15 | 12.6 |
If you are between two sizes, we recommend choosing the larger size for a more comfortable fit.
How to Measure Your Feet
Follow these simple steps to determine your correct shoe size.
Prepare Your Paper
Draw a straight line longer than your foot on a piece of paper.
Position Your Foot
Place the paper on a flat surface. Stand on the line with your heel and longest toe centered.
Mark the Length
Mark the line at the tip of your longest toe and at the back of your heel.
Repeat
Repeat the same process for your other foot.
Find Your Size
Measure the distance between the marks. Use the larger of your two measurements and compare it with our size chart.
For the most accurate result, measure both feet while standing and use the longer measurement.
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UGG Classic Ultra Mini Boot
Meet the UGG Classic Ultra Mini Boot, an iconic everyday essential that combines effortless style with exceptional comfort. Featuring a lower shaft for easy on-and-off wear, this beloved classic offers the signature softness and cozy feel UGG is known for.
Crafted with premium Twinface sheepskin and lined with plush 17mm sheepskin, these boots provide luxurious comfort with every step. A lightweight, flexible outsole and timeless minimalist silhouette make them perfect for everything from relaxed weekends to everyday outings.
Why You'll Love Them
- Iconic Ultra Mini Design: A timeless, low-cut silhouette that pairs effortlessly with your favorite outfits.
- Premium Twinface Sheepskin: Soft 17mm sheepskin upper delivers signature UGG comfort and style.
- Plush Interior: 17mm sheepskin lining and insole provide a naturally cozy feel.
- Easy On & Off: Low shaft and convenient rear pull tab make everyday wear effortless.
- Lightweight Outsole: Flexible cushioning helps keep every step comfortable.
- Water-Repellent Treatment: Pre-treated to help protect the boots against light moisture.
- Versatile Everyday Style: Perfect for casual looks, travel, and relaxed weekends.
- Signature UGG Details: Classic stitching, suede heel counter, and embossed leather heel label.
Product Details
| Brand | UGG |
| Style | Classic Ultra Mini Boot |
| Upper Material | 17mm Twinface sheepskin |
| Lining | 17mm sheepskin |
| Insole | 17mm sheepskin |
| Shaft Height | 3.5 inches (approx. 8.9 cm) |
| Protection | Water-repellent treatment |
| Details | Rear pull tab, asymmetric topline, overlock stitching, suede heel counter |
| Best For | Casual, everyday wear |
Fit & Sizing
The Classic Ultra Mini features a low-cut design with a convenient rear pull tab for easy on-and-off wear. Its soft sheepskin interior and flexible sole offer everyday comfort.
For the best fit, refer to the UGG size chart before selecting your size.
Materials & Care
Made with genuine sheepskin that has been artificially dyed and treated, along with a protective water-repellent finish. Gently clean using products suitable for sheepskin and suede, and allow to air dry naturally.
The binding may be made from polyester or recycled polyester fibers. Sheepskin or lambskin may be sourced from Australia, Ireland, the United Kingdom, or the United States.
Step into the timeless softness and unmistakable look of the UGG Classic Ultra Mini Boot.
Carefully selected by Sienna Outlet
For its timeless design, quality and effortless elegance.
© Sienna Outlet. Product descriptions and editorial content are original to Sienna Outlet.
At Sienna Outlet, we believe true elegance begins with the materials we choose.
Each piece is crafted from carefully selected fabrics designed to feel soft, drape beautifully, and complement your everyday wardrobe with ease.
We focus on breathable, comfortable textiles that offer effortless movement and a refined look throughout the day. From soft blends to smooth finishes and premium knits, every material is chosen for its quality, durability, and timeless appeal.
Our approach is simple: thoughtfully designed pieces, elevated through quality materials that feel as good as they look — season after season.
Enjoy free tracked shipping across Australia & New Zealand.
Estimated delivery: 7–10 business days.
Your order is processed quickly to ensure a smooth and reliable delivery experience.
If your purchase isn’t quite right, you can return it within 30 days — simple and hassle-free.