Why Sizing Is the #1 Return Reason
Wrong sizing is the most common reason buyers are disappointed with their USFans purchases. Asian sizing often runs smaller than US or EU equivalents, but the exact difference varies by category, factory, and even individual item. A medium hoodie from one batch may fit like a US small, while a medium from another batch fits like a US large. This guide gives you a systematic approach to converting sizes and measuring for fit before you order.
The Golden Rule: Measure, Do Not Guess
Never assume your usual size converts directly. Always check the flat measurements in the spreadsheet or supplier listing. Lay a well-fitting item from your closet on a flat surface, measure chest, length, and sleeve, and compare those numbers to the listing. This takes 2 minutes and prevents 90% of fit issues. Keep a note on your phone with your preferred measurements for each category.
General Size Conversion Table
| US Size | EU Size | Asian Size | Chest (cm) | Length (cm) |
|---|---|---|---|---|
| XS | 44–46 | M | 96–100 | 64–68 |
| S | 46–48 | L | 100–104 | 68–72 |
| M | 48–50 | XL | 104–108 | 72–76 |
| L | 50–52 | 2XL | 108–112 | 76–80 |
| XL | 52–54 | 3XL | 112–116 | 80–84 |
| XXL | 54–56 | 4XL | 116–120 | 84–88 |
Category-Specific Sizing Notes
T-Shirts
Asian tees often fit one size smaller in width but similar in length. Boxy fits are an exception — they may run larger.
Hoodies
Oversized hoodies can vary wildly. A 'one size' oversized hoodie may fit like US L or XL depending on the factory.
Shoes
Shoe sizing is the most consistent. Most reps use standard EU sizes, but width can vary. Wide-foot buyers should size up 0.5.
Jackets
Puffers and bombers often have Asian slim cuts. Size up one full size for layering room.
How to Measure for Fit
Use a soft measuring tape or a string and ruler. For tops, measure chest (armpit to armpit), length (shoulder to hem), and sleeve (shoulder seam to cuff). For bottoms, measure waist, inseam, and rise. For shoes, trace your foot on paper and measure the longest point. Compare every measurement to the listing's size chart. If the listing has no chart, ask your agent to request one from the supplier before you buy.
Understanding Regional Sizing Differences
Asian sizing is not uniformly smaller across all dimensions. Some factories produce items with standard Asian length but Western width, while others narrow the chest significantly. European sizing tends to run longer in the torso and arms than US sizing. A US medium in one brand may correspond to an Asian large or extra-large depending on the factory's target export market. Shoes are the most consistent because they use millimeter-based EU sizing, but width still varies by factory. Always measure a garment you already own that fits perfectly, then compare those numbers directly to the listing chart rather than relying on size name alone.
When In Doubt, Size Up or Ask
If you are between two sizes according to the chart, size up rather than down. It is easier to have a slightly oversized item tailored than to make a too-small item wearable. When a listing has no size chart or the chart seems inconsistent, ask your agent to request measurements from the supplier before ordering. Most reputable suppliers will provide flat measurements within 24 hours. This extra step takes almost no time and prevents the most common disappointment in the entire buying process.
Sizing Pitfalls to Avoid
- Assuming all Asian L sizes are the same — they vary by factory and item type
- Ignoring sleeve length on long-sleeve items — it is often shorter than Western cuts
- Not accounting for shrinkage — cotton items may shrink 2–5% after first wash
- Buying 'one size' items without checking the flat measurements
- Forgetting that layering changes fit — size up if you plan to wear hoodies under jackets
