How do I measure my body for CSSBuy sizing?

Use a soft measuring tape. Measure chest, shoulder, length, and sleeve for tops. Measure waist, inseam, and hip for pants. Measure in centimeters.

How many sizes smaller is Asian sizing?

Asian sizing is typically 0.5–2 sizes smaller than US sizing. A US Medium is usually an Asian Large or XL.

What is the best way to avoid sizing mistakes?

Measure an item you already own and love. Compare its measurements to the spreadsheet's size chart. This is the most reliable method.

CSSBuy Spreadsheet | Buy Reps with Confidence

Sizing is the most common reason for buyer dissatisfaction on CSSBuy. In 2026, the sizing problem is not getting better — it is getting more complex because factories are offering more fit variations. The good news is that sizing is completely avoidable if you follow the right process. This guide shows you how to measure your body, read Asian size charts, and compare measurements to avoid returns and exchanges.

How to Measure Your Body

You need four measurements for clothing: chest, shoulder, length, and sleeve. For pants: waist, inseam, and hip. For shoes: foot length (insole). Use a soft measuring tape, not a ruler. Measure in centimeters for accuracy — Asian size charts use cm, not inches.

Body Measurement Guide

1

Chest

Wrap the tape around the widest part of your chest, under your armpits. Keep the tape level. Do not pull tight — keep it snug but comfortable.

2

Shoulder

Measure from the edge of one shoulder to the edge of the other. This is the most important measurement for fit. The shoulder seam should sit on your shoulder bone.

3

Length

Measure from the highest point of your shoulder to your desired hem length. For hoodies, this is usually at or below the hip. For t-shirts, mid-hip.

4

Sleeve

Measure from the shoulder seam to your wrist. For oversized fits, add 2–3 cm. For standard fits, the sleeve should end at your wrist bone.

How to Read Asian Size Charts

Asian sizing is 0.5 to 2 sizes smaller than US sizing. A US Medium is usually an Asian Large or XL. The size label (S, M, L, XL) is less reliable than the actual measurements. Always prioritize the measurement chart over the size label. The most reliable measurement is the flat garment measurement — the width of the garment laid flat. Multiply by 2 to get the full circumference.

Size Conversion Table

US Size	Asian Size	Chest (cm)	Length (cm)
S	M	104–108	66–70
M	L	108–112	70–74
L	XL	112–116	74–78
XL	XXL	116–120	78–82
XXL	XXXL	120–124	82–86

Category-Specific Sizing Rules

Shoes

Run 0.5–1 size small. Measure insole length of a well-fitting shoe. EU sizing is more reliable than US.

Hoodies

Oversized is the default. Size down one for standard fit. Check shoulder drop and chest width.

T-Shirts

Asian sizing is typically 1 size smaller than US. Check shoulder-to-shoulder measurement first.

Jackets

Most oversized category. Size down one or two for fitted look. Layering needs may require sizing up.

Pants

Most inconsistent category. Asian sizing runs 1–2 inches smaller in waist. Check inseam for height.

The "Measure an Item You Own" Method

The most reliable sizing method is to measure an item you already own and love. Lay it flat on a table. Measure the chest (armpit to armpit × 2), length (shoulder to hem), and sleeve (shoulder to cuff). Compare these numbers to the spreadsheet's measurements. If the numbers are close, the fit will be similar. If the numbers are different, expect a different fit.

The Golden Rule

If you are between two sizes, always size up. It is easier to tailor an oversized item than to stretch a small one. For hoodies and t-shirts, an extra 2–3 cm in chest is barely noticeable. A chest that is 2–3 cm too small is unwearable.

CSSBuy Size Chart Guide: How to Measure and Compare in 2026