No, Vietnamese clothing sizes do not map consistently to US, UK, AU, or EU labels. One brand’s M can differ from another brand’s M, and two products from the same label may use different cuts or measurement methods. The safest approach is to compare the exact item’s chart with your body and a similar garment that already fits.
This guide explains how to read Vietnamese fashion size information without relying on a universal conversion table. It also shows what VI PICK can check as an independent Vietnam personal shopper before an approved item is shipped overseas.
Why a universal Vietnamese-to-Western size chart is unreliable
There is no single Vietnamese fashion sizing authority that makes every local S, M, L, or XL equivalent to one US, UK, AU, or EU size. Independent labels publish their own charts, and the numbers can describe different things:
- Body measurements: the intended wearer’s bust, waist, hip, height, or weight range.
- Finished-garment measurements: the dimensions of the actual item.
- Flat-lay measurements: widths and lengths taken while the garment lies flat.
- Model references: the model’s height or body measurements and the size worn.
- Fit descriptions: fitted, relaxed, oversized, cropped, high-rise, low-rise, or adjustable.
Those are not interchangeable. A bust value of 82 cm in a body-size chart is a circumference around the body. A 41 cm pit-to-pit garment width is a one-side flat measurement. Although doubling 41 cm produces an approximate 82 cm garment circumference, that arithmetic does not explain ease, stretch, seam placement, lining, padding, or the intended silhouette.
This is why the common claim that a Vietnamese L always equals a Western S or M is too broad to use safely. Some local garments have compact measurement ranges, while others are oversized, elastic, adjustable, or sold as FreeSize. Start with the exact product rather than the country label.
Published Vietnamese brand size examples
The table below contains examples from current official product information reviewed on October 15, 2026. It is not a universal conversion matrix.
| Official source | Measurement type | Published example | What it means |
|---|---|---|---|
| CHOUCHOU size guide | Body circumference | S: bust 80–84 cm, waist 62–66 cm, hip 86–90 cm | Suggested body range for that published chart, not flat-lay garment width |
| CHOUCHOU size guide | Body circumference | M: bust 85–88 cm, waist 67–70 cm, hip 91–94 cm | Compare with your body and the exact design’s fabric and cut |
| CHOUCHOU size guide | Body circumference | L: bust 89–93 cm, waist 71–75 cm, hip 95–98 cm | A letter size defined by CHOUCHOU, not a universal Western conversion |
| Dottie T1199 blouse | Garment length | S: 60 cm, M: 62 cm, L: 64 cm | An item-specific vertical measurement, not a complete size chart |
CHOUCHOU states that its chart is a reference and that fit can vary by design, fabric, and approximately 1–2 cm. Its current chart also includes a FreeSize range, showing why the letter or label alone is not enough. Review the official CHOUCHOU size-chart example for the source context.
Dottie’s T1199 page lists S, M, and L but publishes only the garment length in readable page text: 60 cm, 62 cm, and 64 cm. Those values help with vertical proportion but do not answer bust or waist fit. See the official Dottie T1199 listing.
Both examples support the same rule: use the measurement that the seller actually provides and do not fill missing dimensions with an assumed conversion.
Body measurements versus flat-lay measurements
Before comparing numbers, identify what the chart measures.
Body measurements
Body charts usually use circumferences. Measure with a flexible tape held level and comfortably close to the body without pulling it tight:
- Bust: around the fullest part of the chest.
- Natural waist: around the narrowest point or where your torso naturally bends.
- Hip: around the fullest part of the seat and hips.
- Shoulder: across the back from shoulder point to shoulder point when requested.
- Height: standing height, useful for judging cropped or long proportions.
- Inseam: from the crotch seam area to the preferred trouser hem position.
Wear light clothing or the undergarments you expect to use with the item. Repeat the measurement once, keep the tape parallel to the floor where relevant, and record centimetres because Vietnamese listings commonly use metric units.
Flat-lay garment measurements
Flat-lay measurements come from clothing, not the body. Place a comparable garment on a level surface without stretching it, close zippers or buttons as appropriate, and smooth obvious folds without forcing the fabric.
Useful points include:
- Pit to pit: straight across the chest between the underarm seams.
- Waist width: straight across the garment at its defined waistline.
- Hip width: across the fullest hip area at a consistent distance below the waist.
- Shoulder width: between the garment’s shoulder seam points.
- Garment length: from the defined top reference point to the hem.
- Front rise: from the crotch seam to the top of the front waistband.
- Inseam: from the crotch seam to the hem along the inside leg.
Photograph each measurement with the tape placement visible. A number without a start point, end point, and measurement method can create a false comparison.
How to compare your measurements with a Vietnamese listing
Use this order:
- Confirm whether the seller’s numbers describe the body or the finished garment.
- Compare body-to-body or garment-to-garment; do not compare your body circumference directly with a one-side flat width.
- Check the fabric and construction for stretch, rigid panels, lining, boning, zippers, elastic, ties, or adjustable hardware.
- Read fit terms such as fitted, oversized, cropped, high-rise, or relaxed.
- Check garment length, rise, and inseam separately from width measurements.
- Ask the seller about the exact item if the chart is incomplete or two sizes appear plausible.
- Choose and approve the final size only after reviewing the available evidence.
A small amount of ease may be built into a garment, but the correct amount depends on design and preference. A fitted woven corset, relaxed T-shirt, lined mini dress, and oversized hoodie should not be evaluated with the same rule.
Should you automatically size up?
No. Sizing up is one possible decision, not a universal solution.
A larger size may provide more room in a rigid bodice or fixed waistband, but it can also change shoulder placement, neckline position, sleeve length, rise, or the intended silhouette. For an oversized piece, moving up may make the garment substantially larger than the designer intended. For an adjustable or elastic design, the smaller option may already cover the relevant range.
When you sit between two sizes, consider:
- Which body point is least flexible in the garment.
- Whether the material stretches and whether it is lined.
- Whether the closure passes over the shoulders, bust, hips, or waist.
- Whether the design is supposed to be fitted or loose.
- Whether the seller permits a local size exchange and how short that window is.
Ask for item-specific guidance instead of relying on a blanket “size up one” rule.
Construction details that change fit
Boning, zippers, and fixed waistbands
Structured panels, side zippers, corset boning, non-stretch lining, and fixed waist seams reduce the room available for error. Check the body point that must pass through the opening as well as the final closed measurement.
Stretch mesh, knit, and elastic panels
Stretch can widen the usable range, but the percentage and recovery matter. A seller’s unstretched and maximum-stretch figures are more useful than the word “stretchy.” Sheer mesh can stretch across the body while still feeling different at seams, trims, or lined sections.
Oversized, cropped, and adjustable shapes
An oversized width does not guarantee sufficient sleeve, torso, rise, or inseam length. A cropped description is intentional styling, not necessarily a sizing defect. Ties, elastic, drawcords, and multiple button positions can add adjustment, but only within the construction shown on the exact product.
Two-piece sets
A set may use one size for both top and bottom even when your measurements fall into different rows. Check each piece separately and ask whether mixed sizes are allowed. Do not assume they are.
What to send VI PICK for a sizing check
Send the following with the exact product reference:
- Official listing, seller post, screenshot, product name, or code.
- Currently available size and color options.
- The seller’s complete size chart and fit notes, if visible.
- Bust, natural waist, fullest hip, height, and relevant shoulder, sleeve, rise, or inseam measurements.
- Flat measurements from a similar garment that fits you well.
- Your usual size as context, not as the conversion rule.
- Preferred fit and the area where fit matters most.
VI PICK can check the brand’s published chart, listed garment measurements, and seller-confirmed information when available. You review the evidence and approve the final size before VI PICK places a personal-shopping order.
If you found the item through social media, send the original post or seller profile as well. Read How to buy from Vietnamese Instagram shops for the reference details that help identify an exact product.
Optional flat-lay tape check after the item arrives
You can request a flat-lay tape check before international dispatch. VI PICK first confirms whether the received item can be measured without wearing, stretching, damaging, or altering it and which measurement points are practical for its construction.
When agreed, the QC record can show the garment laid flat with the tape positioned across selected points. The measurement is documented in centimetres so you can compare it with the same point on a garment you already own.
This optional check has important limits:
- It normally happens after the item has been purchased and received in Vietnam, not at the seller’s checkout counter.
- It does not reproduce a fitting on your body.
- It cannot predict comfort, movement, drape, transparency, or how undergarments affect fit.
- Soft, gathered, pleated, elastic, padded, curved, or asymmetrical designs may not produce one exact repeatable width.
- Any local exchange remains subject to the seller’s approval, condition requirements, stock, costs, and deadline.
If the measured point appears materially different from the seller-confirmed information, VI PICK pauses international dispatch and shares the available evidence. This does not guarantee that the seller will accept an exchange or refund.
The tape check supplements VI PICK’s visible QC; it does not replace the boundaries in VI PICK Trust and Policies.
What VI PICK cannot guarantee
VI PICK cannot guarantee fit, comfort, fabric behavior, or a universal size conversion. We do not perform an in-person fitting, wear the garment, stretch it to a claimed maximum, tailor it, or infer missing measurements from another brand’s chart.
We also do not promise hidden XL stock or alterations. VI PICK can check products that publicly list XL, FreeSize, custom options, or measurements that may suit your request. Any stock, mixed-size set, or alteration option must be confirmed by the seller for the exact item before it is included in a quote.
Ready-made items remain subject to the brand’s sizing and exchange rules. The customer approves the selected size and understands that a measurement-informed choice can reduce uncertainty but cannot remove it.
From size approval to international shipping
After the item and size are approved, the standard process continues:
- VI PICK confirms the available local purchase information and sends a written quote before payment.
- The approved item is purchased through the confirmed Vietnam-side route.
- After receipt, VI PICK completes the agreed visible QC and any approved practical flat-lay tape check.
- You review the QC record and decide whether to approve international dispatch.
- VI PICK packs the approved item and confirms a tracked shipping route based on the destination, final parcel, and current availability.
Items from multiple approved sellers may be combined when timing, item condition, dimensions, and courier rules allow. Consolidation does not guarantee a lower shipping charge. See Vietnam Package Forwarding and Consolidation, How VI PICK works, and VI PICK pricing for the full service boundaries.
Ready to check a Vietnamese clothing size?
Send the exact product link or social post, available size chart, selected color, your measurements, comparison-garment measurements, quantity, and destination through Request a Find. VI PICK will confirm what sizing information and optional measurement checks are practical before you approve the purchase.
Guide FAQ
Vietnamese clothing sizing FAQ
Do Vietnamese clothing sizes match US, UK, AU, or EU sizes?
No. Vietnamese clothing labels do not map consistently to US, UK, AU, or EU sizes. Each brand can define S, M, L, or FreeSize differently, and the cut can change between products. Compare the exact item’s body or garment measurements with your own measurements and a similar piece that already fits you.
Is a Vietnamese size L the same as a US or UK size L?
No. A Vietnamese L is not automatically equivalent to a US or UK L, and it should not be converted from the letter alone. Check whether the brand publishes body measurements or finished-garment measurements, then compare the relevant bust, waist, hip, shoulder, length, rise, or inseam values for that exact design.
Should I automatically size up when buying Vietnamese clothing?
No. Automatically sizing up can create a different problem when a design is oversized, elastic, adjustable, or intentionally cropped. Start with the exact chart and fabric or construction notes. If you sit between two listed sizes, ask the seller how the garment is intended to fit before approving one size over another.
What body measurements should I send?
Send bust, natural waist, fullest hip, and height for most womenswear requests. Add shoulder width and arm length for fitted tops or jackets, and rise plus preferred inseam for trousers. Measure over light clothing with the tape level and comfortably close, then include your usual size and preferred fit as context.
What is the difference between body and flat-lay garment measurements?
Body measurements describe the person’s circumference, while flat-lay measurements describe a garment placed on a level surface. A flat waist width is one side of the garment, not a body circumference. Doubling that width may give an approximate garment circumference, but seams, stretch, gathers, lining, and measurement position can change the result.
How should I measure a garment that already fits me?
Lay the garment flat without pulling the fabric. Record pit-to-pit width, waist width, hip width, shoulder width, garment length, and any relevant rise or inseam. Photograph where the tape starts and ends. Compare like with like: a flat garment measurement should be matched with the same measurement method on the seller’s chart.
Can VI PICK measure my garment before international shipping?
Yes, when you request it and the received item can be measured without wearing, stretching, damaging, or altering it. VI PICK can show agreed flat-lay points with a tape in the QC record before dispatch. This optional check normally happens after purchase and receipt in Vietnam, so seller exchange rules and timing still apply.
Can VI PICK guarantee that the selected size will fit?
No. VI PICK can share the brand’s chart, listed measurements, seller-confirmed information, and an optional flat-lay check when practical, but cannot reproduce an in-person fitting or guarantee comfort and fit. Fabric behavior, body shape, undergarments, posture, styling preference, and measuring technique can all affect the result. You approve the final size choice.