
Reader summary
Four points to keep
- Do not assume S, M or 42 means the same thing across sellers.
- Compare garment or insole measurements using the same method.
- Allow for ease, fabric behaviour and measurement tolerance.
- Use warehouse measurements to verify the item, not guarantee fit.
Does LoloBuy use American or UK sizes?
There is no safe single answer for every product. LoloBuy handles links from many sellers, and those listings can use Chinese letter sizes, EU-style numbers, US or UK shoe labels, centimetres, foot length or a custom chart. The option shown belongs to the listing, not to a sitewide conversion standard.
First identify the category and the unit. A clothing chart may show the garment laid flat, body measurements or approximate recommended height and weight. A footwear chart may show outsole length, insole length or recommended foot length. Those are not interchangeable.
Translate the headings before using the figures and confirm whether width or circumference is shown. If a chest value looks roughly half of what you expect, it may be a flat pit-to-pit width rather than full circumference. The math can be correct while the interpretation is wrong.
Measure an item that already fits
For clothing, lay a comparable garment flat without stretching it. Record chest width, shoulder width, body length and sleeve length from defined points. Use the same garment type: an oversized hoodie is a better reference for another hoodie than a fitted T-shirt.
For shoes, measure both feet late in the day while wearing the sock type you expect to use. Record the longer foot. When possible, also remove and measure the insole of a comfortable pair, but remember that a curled or padded insole can be difficult to measure consistently.
Photograph the tape position or write the measurement method. A number without its endpoints cannot be reproduced later. Convert inches to centimetres only once and keep the original values so rounding does not compound across several conversions.
Read the seller chart as evidence
Match each seller-chart heading to your reference measurement. Compare dimensions, not merely the recommended label. If your reference sits between two options, decide whether the product is intended to fit close, regular or loose and which measurement is least forgiving.
Look for chart notes about manual measurement tolerance, stretch, fabric thickness or model sizing. A tolerance is uncertainty around the stated measurement, not permission to assume any size will fit. Add that uncertainty to your choice rather than treating the chart as laboratory data.
Save the entire chart and selected option together. Sellers can replace images or update measurements. A later warehouse label saying XL is meaningful only when you can show which XL chart and product option you ordered.
Handle US, UK, EU and China labels
Use regional conversion charts only as a starting hypothesis. Brand lasts, garment patterns and seller labeling can diverge even within one region. A numerical EU shoe size or UK size should still be checked against the listing’s stated foot or insole length.
For lettered clothing sizes, do not automatically size up once or twice because the listing comes from China. That shortcut sometimes appears to work and sometimes creates a new error. Compare the actual measurements and intended ease. The required change may differ by product and by body area.
If the option combines two systems, such as a regional number plus millimetres, prioritize the dimension that the seller explicitly defines. If the values conflict, ask for clarification before ordering or choose a listing with a usable chart.
Use warehouse QC without promising fit
A warehouse image can confirm the visible size label and, when requested and available, a garment or insole measurement. Specify the exact endpoints: pit to pit, shoulder seam to shoulder seam, back length or removable insole tip to heel. A request for size measurement alone is too ambiguous.
Check that the ruler starts at zero, lies flat and remains visible across both endpoints. Perspective, folds and tape curvature can introduce error. Compare warehouse and seller figures using the same measurement definition and allow for the stated or reasonable manual tolerance.
Even a clear matching measurement cannot prove comfort, drape, toe-box shape or how the product interacts with your body. Use QC to detect a wrong option or major dimensional mismatch. Keep fit as a personal risk rather than turning a photograph into a guarantee.
A practical size decision record
Write one short record containing your reference item, measurement method, original measurements, listing chart, selected option, desired ease and acceptable tolerance. This makes the decision reviewable and prevents you from mixing body and garment dimensions.
If two sizes remain plausible, identify the consequence of each error. A slightly loose hoodie may be acceptable while a short sleeve is not; extra shoe length may be manageable while inadequate width is not. Choose according to the product and your priority, not a generic rule.
At warehouse arrival, compare only against the saved record. If the label or measurement is materially different, use the current support and after-sales options before parcel submission. If the evidence matches, record the remaining fit uncertainty and decide whether it is acceptable.
Worked clothing and footwear examples
For a hoodie example, your reference garment measures 60 centimetres pit to pit and 70 centimetres down the back. The seller chart shows two nearby options: one with a 58-centimetre chest width and one with 62. Compare the intended fit and the seller’s tolerance. Choosing the larger number is a fit decision, not a universal instruction to size up.
Record whether the seller chart describes flat garment width. If it instead lists body chest circumference, the comparison must change. Do not compare 60 centimetres flat with 120 centimetres circumference until the units and measurement type are made consistent. Ask for clarification if the headings cannot be interpreted reliably.
For a shoe example, suppose the longer foot is 268 millimetres and a comfortable removable insole measures 278 millimetres. If the listing maps an EU-style option to a stated foot-length range, use that seller mapping while checking toe allowance and width notes. Do not replace it with a generic EU conversion copied from another brand.
At the warehouse, request the visible size label and removable insole length only when feasible and decision-relevant. A 278-millimetre image supports the length question if both endpoints are visible, but it does not prove internal width or comfort. Keep those remaining unknowns explicit when approving the parcel.
- Identify whether the chart describes a body, garment, foot, insole or outsole.
- Keep original units beside any converted centimetre or inch value.
- Use the same endpoints on the reference item and seller chart.
- Record desired ease instead of choosing the numerically closest measurement automatically.
- Check material stretch, thickness and cut where the listing supplies that context.
- Preserve the selected option, full chart, seller and date together.
- Define any requested warehouse measurement before the photograph is taken.
- Treat matching dimensions as evidence, never as a promise of comfort or fit.
Continue your research
Open a matched product, then verify the live details
Product availability, options, prices and seller notes can change. Use the catalog to find an item, then make the purchase decision from the current page and your saved order record.