Why Shein Sizing Is Different
One of the most common complaints from first-time Shein shoppers is that the sizing feels inconsistent or runs small. There's a straightforward explanation: Shein's sizing is primarily based on Asian sizing standards, which typically run one to two sizes smaller than US or European equivalents. The solution isn't to avoid Shein — it's to stop guessing your size and start measuring.
What You Need to Take Your Measurements
All you need is a soft measuring tape (the kind used for sewing), a mirror, and about five minutes. If you don't have a soft tape, a piece of string and a ruler work just as well.
How to Measure Each Key Area
Bust
Measure around the fullest part of your chest, keeping the tape parallel to the ground. Don't pull it tight — you want a comfortable, snug fit, not a constricting one. Wear your usual bra when measuring.
Waist
Measure around your natural waist, which is the narrowest part of your torso — usually about an inch above your belly button. Stand up straight and breathe normally; don't suck in.
Hips
Measure around the widest part of your hips and seat, usually about 7–9 inches below your natural waist. Keep the tape parallel to the floor.
Height
Stand against a wall without shoes and mark the top of your head. Shein uses height in combination with other measurements to suggest appropriate sizing, especially for dresses and jumpsuits.
Using Shein's Size Charts Correctly
This is where most shoppers go wrong: Shein does not use a universal size chart. Each product listing has its own size chart. A Medium in one dress is not the same as a Medium in another dress from a different Shein brand line.
- Open the product listing.
- Tap or click on "Size Guide" — it's usually near the size selector buttons.
- Compare your measurements to the chart for that specific item.
- When you fall between two sizes, check the reviews to see how others sized up or down.
Common Fit Issues and How to Handle Them
| Fit Problem | Likely Cause | What to Do |
|---|---|---|
| Too tight in the chest | Sized by waist/hips only | Size up and check bust measurement first |
| Waist fits, hips don't | Straight-cut design | Look for "curve" or "plus" versions of the style |
| Dress too short | Height not factored in | Check the listed garment length vs. your torso length |
| Shoulders too narrow | Asian sizing standard | Size up or look for "loose fit" labeled items |
Tips for Specific Categories
- Jeans and bottoms: Always measure your waist and hips and compare both to the chart. Shein jeans often have less stretch than Western brands.
- Tops and blouses: Your bust measurement is usually the deciding factor. Check shoulder width if listed.
- Swimwear: Size up at least one size, especially in one-pieces. Swimwear with no stretch or minimal stretch should be sized generously.
- Shoes: Shein shoe sizing often runs small. Read reviews carefully and check if reviewers mention sizing up.
Save Your Measurements in the App
Once you have your measurements, save them in your Shein profile. The app will use these to flag when an item may not match your proportions, and the built-in size recommendation tool becomes much more accurate with your data filled in.
Taking measurements takes five minutes but saves you the frustration of returns. Make it a habit before every first purchase from a new Shein product line.