CSSBuy Sizing Guide: How to Get the Perfect Fit Every Time
Getting the right size is the single most important factor in rep buying satisfaction. Unlike retail where you can try things on, rep buying requires you to get sizing right from the start. This guide provides everything you need to nail sizing across all product categories.
Understanding Chinese Sizing
Chinese sizing conventions differ from Western standards in ways that consistently trip up new buyers. Understanding these differences is the foundation of successful rep buying.
The most important thing to understand is that Chinese sizing typically runs smaller than US/EU sizing. A Chinese "L" is often equivalent to a US/EU "M" or even "S". This is not a quality issue — it's simply a different sizing convention based on different average body measurements.
| Chinese Size | US Size | EU Size | Chest (cm) | Height (cm) |
|---|---|---|---|---|
| S | XS | XS | 84-88 | 160-165 |
| M | S | S | 88-92 | 165-170 |
| L | M | M | 92-96 | 170-175 |
| XL | L | L | 96-100 | 175-180 |
| 2XL | XL | XL | 100-104 | 180-185 |
| 3XL | XXL | XXL | 104-108 | 185-190 |
Shoe Sizing: The Most Critical Category
Shoe sizing is where getting it wrong is most costly — you can't easily alter shoes, and returns can be complicated. The good news is that shoe sizing is also the most documented category in the rep community.
Measure your foot length in centimeters by standing on paper and marking the longest point
Use this measurement to find your size on the seller's specific size chart
Check community reviews for the specific model — many note if it runs large or small
For Nike models, your US size usually translates directly
For Adidas models, go half size up from your usual US size
For New Balance, your US size usually works but check model-specific reviews
For Jordan 1s, many buyers go half size up due to the narrow toe box
Pro Tip: The r/Repsneakers subreddit has a sizing megathread for most popular models. Always check this before ordering shoes — it's the most comprehensive sizing resource available.
Clothing Sizing: Measure, Don't Guess
For clothing, the most reliable approach is to measure a garment you already own that fits well, then compare those measurements to the seller's size chart. This eliminates the guesswork of size conversions.
Lay a well-fitting garment flat on a surface
Measure chest width (armpit to armpit, doubled)
Measure shoulder width (seam to seam)
Measure body length (collar to hem)
Measure sleeve length if relevant
Compare these measurements to the seller's size chart
Choose the size where your measurements fall in the middle of the range
Warning: Never rely solely on size labels when buying rep clothing. The same "L" from different sellers can vary by 5-10cm in chest width. Always check the actual measurements.
Category-Specific Sizing Tips
Different clothing categories have different fit conventions that affect sizing decisions.
| Category | Fit Style | Sizing Advice |
|---|---|---|
| Hoodies | Oversized/relaxed | Size up 1-2 for oversized look, true size for regular fit |
| T-Shirts | Varies by brand | Check brand-specific sizing, generally size up 1 |
| Jackets | Fitted | True size or size up 1 for layering |
| Pants | Varies | Measure waist and inseam, compare to chart |
| Jerseys | Loose/athletic | Size up 1-2 from usual clothing size |
| Sets | Coordinated | Size for the larger body part, usually top |
Frequently Asked Questions
Key Takeaways
Sizing correctly is a skill that improves with experience. Build a habit of measuring before ordering, checking community reviews for model-specific sizing notes, and when in doubt, going slightly larger. The investment of a few extra minutes in sizing research pays dividends in haul satisfaction.
