Choose Classic Mini II for more ankle coverage; choose Classic Ultra Mini for the lower cut. The Mini II is $174.95 with a 5-inch shaft. The Ultra Mini is $164.95 with a 3.5-inch shaft. These are the standard boots, not the platform versions.
For a sock showing above the boot or cropped jeans, start with Ultra Mini. For leggings, slim trousers or a little more coverage on cool mornings, try Mini II. Pick the shape you want to wear, then choose your color and size.
Shop this guide: Classic Ultra Mini · Classic Mini II
UGG Women's Classic Ultra Mini Boot
$164.95
The lower, 3.5-inch shaft works well when you want more sock or ankle showing. Chestnut is pictured. For US 5, check Black or Sand in our current selection.
Shop Ultra Mini colors and sizes
UGG Women's Classic Mini II Fashion Boot
$174.95
A 5-inch shaft gives this short boot more ankle coverage than the Ultra Mini. Black is pictured; Chestnut and Sand are also worth checking for your size.
Shop Mini II colors and sizesFor Mini II, Black, Chestnut and Sand currently have US sizes 5 through 10. For Ultra Mini, Black and Sand cover that same range; Chestnut currently starts at US 6. If your preferred color lacks your size, check another color in the same model before changing the fit.
The product pages show current selections. There is no need to switch boot heights just because the first color you open is missing your size.
Both boots have a rear pull tab. UGG describes the Ultra Mini's low shaft as easy on and off, but your instep still matters. Try the opening, then check toe space and heel fit with your foot fully inside.
If you wear a half size, measure first and compare the neighboring whole sizes using the official women's chart. The Classic Mini sizing guide explains the measurement and indoor try-on. A shorter shaft is a change in shape, not a reason to choose a smaller shoe size.
For more boot above the ankle, compare Short II and Tall II in the Classic boots guide. Prefer an open-back shape? Start with the women's UGG slipper guide.
Both styles have a water-repellency treatment. That is different from waterproof construction. For rainy-day shopping, read which UGGs are waterproof; for more leg coverage, see our winter UGG guide.
Classic Mini II has a 5-inch shaft; Classic Ultra Mini has a 3.5-inch shaft. Mini II gives more ankle coverage, while Ultra Mini leaves more sock or ankle visible. This comparison covers the standard boots, not the platform versions.
UGG describes the Ultra Mini's low shaft as easy on and off. Use its rear pull tab, then check the fit with your foot fully inside. Entry still depends on your instep and the opening.
Use the official women's size chart and your measured foot length. If you are between whole sizes, compare toe space, instep pressure and heel fit with your intended socks rather than automatically choosing the smaller pair.
Mini II gives more ankle coverage. That is a reason to choose it on a cool day, but shaft height is not a temperature rating. For more coverage, compare Classic Short II and Tall II.
Still deciding between boots and slip-ons? Our UGG slippers vs. Birkenstock Boston comparison covers that different choice.
Product references: UGG Classic Mini II and UGG Classic Ultra Mini.
Free U.S. shipping. Full-price items have a 30-day return window after delivery with free return shipping. Items must be unworn, in original packaging with tags attached. Sale items are final sale. See our return policy.
For a try-on, visit Feet World in Culver City or Arcadia. Fit questions? Call (310) 398-7497.
More ankle coverage: shop Mini II. Lower cut: shop Ultra Mini. Open your pick to choose a color and see current sizes.
Restock news, new arrivals, UGG season updates and fit tips from Feet Heart.