To help choose a size through a VK post, show exactly what to measure and which size chart to compare it with. A single label of S, M, or L is not enough: the reader may measure their body, while the seller measures the finished garment. The difference must be clear before they get in touch.
Name the object of measurement
For your model, specify what the chart contains: body circumference, the width of the item laid flat, or another parameter. State the units. If you give an acceptable tolerance, take it from the manufacturer's actual data rather than making it up for the sake of a confident answer.
Make your own diagram with two measurement points and a short instruction. Check that a photo with a measuring tape is legible from a phone. Do not mix charts from different models under a common heading of "our size": the same letter label does not prove the same fit.
A sample question for practice
A hypothetical customer writes: "I wear M, which one should I choose?" Instead of an immediate promise, reply: "For this model, we compare the width of your comfortable item laid flat. Measure along the line shown in the diagram and send the result in centimeters." The actual measurements and the choice are then checked against the chart for the exact model being sold.
Do not publish someone else's measurements or a customer's photo in the comments unless necessary. Offer a private channel for an individual question. Honestly leave a missing measurement unknown, instead of passing off generic advice as a personal fit recommendation.
Check the post before promoting it
Give the instruction to someone who has not seen the product. Ask them to explain where to place the start of the measurement and what to write down. If they get a different number because of where the measuring tape is placed, fix the diagram rather than adding another promotional paragraph.
The post reduces uncertainty, but it does not guarantee a perfect fit. The terms of fitting, exchange, and return come from the seller's current rules; the publication itself must not invent them. The method is suitable for an editorial explanation of a product and does not depend on any special button in the VK interface.
Diagram: 1 — name the object and units of measurement; 2 — take the measurement according to the diagram; 3 — compare it with the chart for the required model.
Related task: Product card for a VK community: which questions should the photos answer.
Sources
Boosted: VK catalog. Verified 22 September 2026. Practical scenarios and diagrams are an editorial methodology; the hypothetical numbers are not client data.
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