"Do UGG run large or small?" is by far the most frequently asked question before ordering a pair — and the answer varies by model. Read below which size to choose for each UGG type, so you get it right the first time.
Classic models: choose half a size to a full size smaller
The iconic Classic boots — think Classic Mini, Ultra Mini and Ultra Mini Platform — are designed to be worn barefoot or with a thin sock. They run spacious as a result. If you're between sizes, choose the smaller one: the soft sheepskin settles a bit after a few wears and molds to your foot. If you have a whole UGG size (for example 38), your regular size usually suffices; if you're in a half size, round down.
UGG sneakers and platforms: just your regular size
UGG makes increasingly more sneakers and platform models with a fixed insole and normal fit. The Classic advice does not apply here: simply choose your usual shoe size. If you're hesitant about a platform due to the higher sole? You'll still be fine with your regular size.
Slippers and house shoes (Tasman, Scuff)
The Tasman and Scuff run spacious like the Classic and are delightful to wear without socks. Want a tighter fit? Go down a size. Wearing them with a wool sock at home? Then your regular size is perfect.
Care: how to keep your UGGs going for years
Treat new UGGs beforehand with suede and water-repellent spray to protect against moisture and stains. Clean with a damp cloth and a soft suede brush, never in the washing machine. Let them dry at room temperature, away from heating, so the pile stays soft.
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Frequently asked questions
Do UGG run large or small?
The Classic models (Mini, Ultra Mini, Tasman) run spacious — choose a size smaller if unsure. UGG sneakers and platforms fit normal: take your usual size.
Which size do I choose in a half size?
With Classic boots and slippers, round down; the pile settles a bit after wearing. With sneakers, stick to your regular size.
Can I wear UGG with socks?
The Classic models are designed for barefoot or a thin sock. Want to wear a thick wool sock, then stick to your regular size instead of sizing down.
