UGG runs large. Most shoppers size down from their usual size, especially in shoes. Australian comfort, runs large; size down for a snug fit Check the category notes below for tops, bottoms, and outerwear specifically.
Australian comfort, runs large; size down for a snug fit
Confidence: Medium, based on official size chart data
Sizing overview
Most shoppers try one size down first. Use the notes below to see where UGG feels slimmer, roomier, or more consistent across categories.
UGG runs large. Classic Short and Tall boots run large. Size down 1 for a snug fit, or true to size if you prefer room for thick socks. Sheepskin stretches with wear.
Plain-language cut notes and examples below show where pieces usually feel closer, roomier, or most predictable.
GENERAL BRAND GUIDANCE
This is a general brand-level sizing summary, not an exact product recommendation. For your specific size, paste a product link into the fit checker.
UGG runs large. Australian comfort, runs large; size down for a snug fit
Sizing tendency
Most shoppers try one size down first.
Consistency
Variation depends on the category.
Best check
Start with the category note, then check whether the cut is meant to feel structured or relaxed.
Variability and caveats
Cut
Structured pieces often cancel out some of the extra room, so they can feel closer than the brand’s usual direction.
Fabric stretch
Fabric stretch changes how strongly the sizing tendency shows up: more give softens it, less give makes it more obvious.
Styling
Styling details like intended silhouette, layering room, and line-specific fit can shift how the brand’s usual sizing direction feels.
Classic Short and Tall boots run large. Size down 1 for a snug fit, or true to size if you prefer room for thick socks. Sheepskin stretches with wear.
What to expect
Expect shoes to come with extra ease, especially in softer or oversized pieces.
UGG runs large. Australian comfort, runs large; size down for a snug fit Most shoppers try one size down first.
If you wear a Medium in standard contemporary sizing, try a Small at UGG first, especially in softer or relaxed pieces. Fit can vary across shoes, so confirm against the specific category you are shopping.
UGG fit is fairly consistent across the categories we track. The brand publishes a single sizing standard that holds up across most pieces.
UGG publishes an official size chart. ThisFits cross-references it against real shopper fit reports across UGG's catalog to surface where real-world fit differs from the chart.
Since UGG tends to run large, sizing down usually means fewer returns when you are between sizes, especially for relaxed silhouettes.
UGG sizes similarly to Gap and Free People, many customers prefer to size down. Shoppers commonly compare UGG against other contemporary labels in the same category to translate sizes between brands they already wear.
UGG typically accepts returns on unworn items with tags within the window stated on the order page or receipt. Policies vary by retailer and third-party sellers may differ, so confirm before ordering.