How to Tell When Your Boutique Customers Need a Wider Size Range: Signals and an Action Plan

Size range influences sales far more than the modest space it takes up on a stock sheet would suggest. When a customer finds a style she likes but keeps hearing “we don’t have that size anymore” or “this cut only goes up to a smaller size,” the problem isn’t a single lost sale. Over time she may stop checking the shop’s offer at all, because she has decided it isn’t put together with her in mind.

For a boutique owner, the signals around sizing aren’t always obvious. Some customers will ask directly for a larger size. Others will try on a few styles and leave without buying anything. In an online shop, the clues can come from searches, returns, messages, and pre-purchase questions.

So how do you recognise when your current size range is holding sales back? And how do you extend it in a way that’s based on real demand rather than a hunch?

A wider size range is about more than the number on the label

Extending the size range is often reduced to a simple move: order the same style in a larger number. In practice it’s more complex than that. In elegant women’s clothing in particular, what matters isn’t only whether a size is available, but also how the cut is constructed, its proportions, and the way the garment sits on the body.

A customer who wears a size 48, 50, or 54 isn’t simply looking for a “bigger version” of a product. She expects a garment that has been designed to look good and fit well in her size.

That’s why, when broadening the offer, you need to look at two things at once:

• whether there is unmet demand for larger sizes in the boutique,
• whether the manufacturer can supply clothing that is genuinely well made in those sizes.

Only when these two elements come together do you have a real chance of expanding sales sensibly.

Signal 1. Customers regularly ask for larger sizes

The simplest signal often appears at the counter, in the fitting room, or in messages to the shop. When the question “do you have a larger size?” comes up again and again, it shouldn’t be treated as a passing remark.

A single enquiry tells you little. A run of similar questions about different styles already points to a real gap in the assortment.

It’s worth keeping a record over a few weeks of:

• which size the customers are asking about,
• which product the question relates to,
• whether the customer walks away without buying,
• whether she chooses a different style instead,
• whether she says she’ll come back if the right size becomes available.

You don’t need a sophisticated system. Even a simple note kept by your staff can reveal a clear pattern after a while.

Once requests for sizes 46, 48, 50, or larger stop being the exception, the boutique has concrete buying information.

Signal 2. Some customers browse the offer but rarely buy

A non-purchase doesn’t always mean a problem with price or cut. Sometimes the reason is the size range, even if the customer never says so outright.

In a brick-and-mortar shop you can spot situations where a customer:

• picks out several styles but can’t find the right size,
• asks about alternatives and then gives up,
• tries on the largest available size, which turns out to be too small,
• looks at new arrivals but immediately checks the labels and puts the items back.

These behaviours are easy to miss, especially when staff focus mainly on completed transactions. Yet a lost sale is also information about demand.

In an online shop, pre-purchase messages, questions about the availability of larger sizes, and abandoned carts after a customer has checked the product variants can play a similar role.

Signal 3. The largest available sizes sell out faster

If, within a particular category, the largest sizes regularly disappear first, it’s worth taking a closer look at the structure of your orders.

This isn’t about a single style. What matters is repetition. If you see the same thing happening with dresses, trousers, blouses, or sets, it may mean that the upper limit of your current size range doesn’t match actual demand.

In that case, two sensible questions arise:

• Are we ordering too few units in the largest available sizes?
• Do some customers need sizes that the offer doesn’t include at all yet?

These are two different problems. The first can be solved by adjusting the proportions of your stock. The second calls for working with a manufacturer that offers a wider size range.

Signal 4. Customers only buy certain cuts, because the others aren’t available to them

Sometimes a boutique technically stocks larger sizes, but only in a few “safe” categories. Larger sizes might appear in tunics and looser blouses, for example, while they’re missing from dresses, trousers, sets, or outerwear.

As a result, the customer has access to her size, but not to the full offer.

From a sales point of view, that’s an important difference. A woman who wears a larger size doesn’t necessarily want to limit her wardrobe to a single type of cut. She may be looking for an elegant dress, a modern set, well-tailored trousers, a biker jacket, or a coat.

So when analysing demand, it isn’t enough to check whether larger sizes are in the shop. You also need to see how many categories they’re actually available in.

Signal 5. Mature customers struggle to find cuts that fit

In boutiques aimed at women over 40, sizing is often bound up with how the garment is constructed. A customer may fall within the size range on paper and still regularly struggle to get a good fit.

The reasons vary: body proportions, the length of the style, where the waist sits, sleeve width, or the way the fabric drapes.

That’s why recurring comments like these are a warning sign:

• “it’s fine across the bust, but not below,”
• “this size should fit, and yet it doesn’t sit right,”
• “I’m looking for something elegant, but not tight,”
• “the larger size is bigger everywhere except where I actually need it.”

This shows why the numbering alone isn’t enough when choosing a manufacturer. A good size range has to go hand in hand with a good fit.

At MAKO we work with women’s clothing in sizes 40–54, and that’s precisely why we pay attention not only to the range of numbers, but also to the construction of styles designed for mature women.

Signal 6. Customers ask about products the boutique never planned to stock in larger sizes

Questions that go beyond your current buying structure are valuable information too.

If customers who wear larger sizes regularly ask about:

• elegant dresses,
• trousers,
• sets,
• waistcoats,
• coats,
• throw-on layers,
• more contemporary cuts,

then it’s a signal that demand may be broader than your sales history suggests.

This is a common trap in assortment analysis: a shop judges demand by what it sells, even though part of the reason it doesn’t sell certain products is that it never offered them in the right size.

An absence of sales doesn’t always mean an absence of interest. Sometimes it simply means there was no product the customer could actually buy.

Signal 7. Customers come back, but ask for more choice

This is one of the stronger arguments for extending the size range. If a customer knows the shop, is comfortable with its price level, and likes the style of the collection, but keeps saying she has too few styles to choose from, the problem doesn’t lie with the boutique’s positioning.

She simply lacks the right stock.

For a shop, this situation is especially valuable, because the potential audience already exists. You don’t need to win her over to the brand’s aesthetic or its way of selling. You only need to make it possible for her to buy more often.

In cases like these, extending the offer can support not only individual transactions, but also the loyalty of customers who previously bought only occasionally because their choice was limited.

How to test demand before a bigger change to your stock

Extending the size range shouldn’t mean an abrupt overhaul of your entire buying structure. It’s far wiser to approach it in stages.

Start by observing

Over a set period, gather information from your staff, from messages, and from sales. What you’re after above all is recurring signals, not one-off opinions.

Make a note of:

• missing sizes,
• the most frequently mentioned categories,
• styles customers weren’t able to buy,
• how the largest available sizes behave,
• requests to broaden the offer.

After a while, you’ll have a much clearer picture of the need than one based on intuition alone.

Choose a few categories to test

You don’t have to extend every category at once. You can start with the ones where interest is most visible.

If customers most often ask about dresses, trousers, and sets, that’s where it’s worth testing the potential of larger sizes. In another boutique, the demand might centre on blouses, tunics, and outerwear.

The test should be driven by the behaviour of your specific customers, not by the assumption that every shop has the same sales structure.

Look at more than the number of units sold

Once you’ve introduced a wider size range, it’s worth checking more than sales alone.

Pay attention to whether:

• customers find the right cut more easily,
• they buy more than one product,
• they come back for further styles,
• the number of questions about missing sizes goes down,
• which categories turn over best.

Information like this helps you plan future orders more effectively.

Extending the size range calls for the right manufacturer

Even well-understood demand won’t help if your supplier doesn’t have products suited to this group of customers. So when choosing a manufacturer, it’s worth looking at more than the size range stated in the offer.

What also counts is:

• experience in creating clothing in larger sizes,
• refined construction,
• the quality of the materials,
• careful workmanship,
• stylistic consistency across the collection,
• the availability of different product categories.

In the elegant women’s clothing segment especially, extending the numbering should give the customer more choice, not just a bigger size.

If a shop sells modern clothing for women over 40, it helps if full outfits can be put together and different cuts chosen in sizes 48–54 as well. That changes how the customer perceives the offer: she doesn’t feel she’s using a limited part of the collection.

How this looks from MAKO’s perspective

As a Polish manufacturer of women’s clothing, we work with B2B partners: brick-and-mortar and online boutiques, wholesalers, distributors, and brands. In the Marguerite by Mako collections we develop elegant, modern women’s clothing in sizes 40 to 54.

This includes, among others, dresses, blouses, tunics, trousers, waistcoats, sets, sweatshirts, biker jackets, coats, and throw-on layers. It means a partner can build an offer for customers who wear larger sizes across several categories, rather than limiting it to a handful of styles.

We produce in Poland, in our own facility, using certified materials. For boutiques looking for a wider size range, this has a practical benefit: the size range is part of the whole collection and the way it’s designed, not a random add-on to a single product.

A wider size range should come from your own boutique’s data

Not every shop needs the same range of numbers, and not every category will sell in the same proportions. Your best guide is your own customers.

If they regularly ask about larger sizes, the largest available options sell out quickly, some women give up on a purchase because of a poor fit, or they ask for more choice — these are signals you shouldn’t ignore.

A well-planned extension of the size range can help you reach a group of customers who are already interested in the boutique’s offer but haven’t always been able to make use of it. The safest approach is to start by observing, test a few categories, and only then build up your stock based on actual sales.

If demand for elegant women’s clothing in sizes 40–54 is emerging in your boutique, get in touch with MAKO. We can present the Marguerite by Mako B2B offer and talk about collections that will let you broaden your shop’s assortment in a way that fits its customers.