Sizing Guide for International Buyers

Sizing is the number one reason for returns and exchanges in the Hipobuy ecosystem. In 2026, the problem is not that factories are careless; it is that sizing standards differ dramatically between Asian production, US retail, and EU labeling. A "Large" t-shirt from one factory may measure 52cm across the chest, while another factory's "Large" measures 58cm. This guide teaches you how to measure, convert, and order the right size every time.

Why Sizing Is Inconsistent

Factories do not follow a universal size chart. Each factory uses its own pattern blocks based on the region they primarily supply. A factory that mostly sells to Southeast Asian markets will cut smaller than a factory targeting North American buyers. The Hipobuy spreadsheet tries to include size charts when available, but not every listing has them.

The Golden Rule: Measure in Centimeters

Never order based on a labeled size (S, M, L, XL). Always find the size chart in the listing or ask your agent to measure a sample. Then compare those centimeter measurements to a piece of clothing you already own and like the fit of.

**How to measure a garment you own:**

1. Lay it flat on a hard surface.
2. For chest width, measure from armpit seam to armpit seam, then double it.
3. For shoulder width, measure from shoulder seam to shoulder seam.
4. For sleeve length, measure from shoulder seam to cuff edge.
5. For body length, measure from the highest point of the collar to the hem.
6. For pants waist, measure across the top edge and double it.
7. For pants inseam, measure from the crotch seam to the hem.

Category-Specific Sizing Notes

T-Shirts

• Most factories run one size small compared to US retail.
• If you wear US Medium, order Large unless the size chart proves otherwise.
• Oversized cuts vary wildly; always check the shoulder width.

Hoodies and Sweaters

• Hoodies generally fit true to size or slightly small.
• Knit sweaters can stretch over time; if between sizes, size down for a fitted look or size up for relaxed.
• Check sleeve length carefully; some factories use disproportionately short sleeves.

Pants and Shorts

• This is the highest-risk category for sizing errors.
• Inseam lengths are often 2-3 inches shorter than US equivalents.
• Waistbands with elastic can compensate by 2-4cm, but do not rely on this.
• Cargo pants with adjustable waist tabs are more forgiving.

Shoes

• Shoe sizing is the most standardized category, but half-size accuracy varies.
• Some factories skip half sizes above US 10.
• Always check if the factory uses US, UK, or CN sizing on the label.

Jackets

• Puffer jackets are usually true to size but can feel smaller if you plan to layer underneath.
• If you wear a hoodie under your jacket, add 4-6cm to your chest measurement requirement.
• Track jackets tend to run slim; size up if you prefer a looser fit.

Conversion Reference Table

Use this table as a starting point, but always defer to the factory's specific size chart.

When in Doubt

If a listing has no size chart and your agent cannot measure a sample, do not order. The $20 you save is not worth the exchange hassle. Wait for another listing or ask in community threads if someone has already measured that batch.