Crew neck or V-neck: which undershirt should I launch first?

Short answer: Choose the neckline your target customer wears most often with their outer clothes. Crew necks suit customers who wear T-shirts as outerwear, wear shirts buttoned to the top with a tie, or want a layer that also looks acceptable on its own. V-necks suit customers who wear dress shirts with an open collar, because the V stays hidden in the open neck. If your marketing focuses on office workers who skip ties, a V-neck is often the safer first style; if it focuses on general basics or casual wear, a crew neck is. Use evidence: your own customer survey, search and marketplace data, reviews of comparable undershirts and pre-orders. Keep the first order narrow in colours and sizes so you can add the second neckline once you see sales and returns.

Who wears which

• Crew neck: tie wearers, casual layering, worn alone at home.
• V-neck: open-collar shirts, business casual.
• Deep V: customers who undo two buttons.

Gathering evidence

• Ask your audience how they wear dress shirts.
• Compare marketplace bestsellers and review comments.
• Run pre-orders or a small test batch of both.
• Watch return reasons such as neckline shows.

Planning SKUs and MOQ

Each neckline multiplied by colours and sizes creates SKUs, each needing its own barcode under GS1 practice and its own stock. A first order of one neckline in two colours and five sizes is ten SKUs; adding a second neckline doubles it. Ask the factory whether both necklines can share fabric, so the fabric minimum is shared and only the garment minimum per style applies.

Fit points

Both styles share the body pattern; only the neckline and trim change. Grade neckline width and V depth by size, using body measurements such as ISO 8559 definitions.

A worked example

As an illustration, a brand selling to office workers could survey its mailing list, find most respondents wear shirts without ties, launch a V-neck in white and a skin tone, and add a crew neck later if customers request it.

Reading early sales

After launch, compare sell-through by size and colour, return reasons and customer questions about necklines. Requests such as do you have a V-neck are direct evidence for the second style.

Limits

Preferences vary by country, age and dress code, and surveys do not always match purchases.

Facts, recommendations and uncertainty

Established: neckline choice depends on how customers wear outer shirts. Recommendation: match your main customer, start narrow and test. Uncertain: real demand until you sell.

Sources and further reading

• GS1 — How many GTINs for a product with many sizes and colours
• ISO 8559-1:2017 — Size designation of clothes: anthropometric definitions for body measurement

Standards and regulations are referenced by their published scope. Test parameters, cycles and pass levels should be agreed with your laboratory for the specific product; legal requirements should be confirmed for each destination market.