Kids keep growing. Clothes don't: a calmer system for sizes and hand-me-downs

You are in a shop and someone messages: “What size does she wear now?” The last pair of trousers says 134, the rainwear says 140, and the trainers that fit in spring are already tight. At home, a box marked next size contains three winter jumpers, two single gloves and no trousers.

This is a small problem that repeats for years. Children grow, brands cut clothes differently, seasons change and several adults may buy for the same child. The result can be wrong-size gifts, duplicate purchases and useful hand-me-downs found after they have become too small.

A perfect size chart will not solve all of that. A more realistic goal is a shared answer to three questions:

1. What fits this child now?
2. What do we already have for the next season or size?
3. What should happen to clothes that no longer fit?

The system below is a practical synthesis of clothing research and official guidance. It has not been tested as an intervention, and no study cited here examined Famn. Use it to support shopping and wardrobe decisions, not to judge a child's body or monitor their health.

A size label is useful, but incomplete

International clothing standards define size designations in relation to body dimensions. ISO 8559-2:2025, for example, sets out primary and secondary dimensions for labelling clothing sizes. A label such as 140 or EU 35 is therefore a shorthand, not a complete description of fit.

The same nominal size can feel different because a garment has another cut, fabric or intended layer underneath. A child's comfort and movement matter too. That is why a dated note saying EU 35, Brand A, fitted in October is usually more useful than an undated “shoe size 35”. It describes what worked in a particular product at a particular time. It does not promise that another model will fit.

Norwegian parents already make these practical assessments. In six focus groups with 40 parents, SIFO researchers found that parents assessed children's clothes through experience: whether an item survived seasons, stayed functional and lasted until the child outgrew it. Warmth, dryness and freedom of movement were especially relevant in the Nordic climate. Parents often used brand and price as uncertain signals of quality because better information was hard to find. The study explains how those parents reasoned, but its qualitative sample cannot tell us how common each behaviour is among Norwegian families. Klepp and Haugrønning (2021).

This points to a simple improvement: record the information your own family has actually learned. “Runs narrow”, “room for wool underneath” or “this model rubbed at the heel” can prevent the next buyer from starting from zero.

The child is part of the decision

Fit is not only a measurement. Clothes are worn at school, in daycare, at activities and among friends. A 2025 qualitative study of 12-year-olds in Oslo found that children used clothing to create belonging and navigate group norms. Parents described clothing as care: keeping children warm and providing clean, intact and age-appropriate clothes. The children were concerned with fitting in, although that did not simply mean chasing status or the most expensive brand. Haugsrud, Klepp and Reich (2025).

The study concerned 12-year-olds in Oslo, so it does not represent all children, ages or places. It still provides a useful reminder: an adult can find a garment practical while the child experiences it differently. A hand-me-down nobody wants to wear is not useful simply because the label is correct.

Ask questions that the child can answer:

• Can you move, sit and play comfortably in this?
• Does anything pinch, rub or feel too loose?
• Would you choose to wear it?
• Is there something about the colour, fabric or style that matters to you?

For younger children, observe movement and comfort rather than expecting a precise explanation. For older children, let them help decide what is kept, passed on or donated. This makes the record more accurate and treats clothing as something they use, not an inventory managed around them.

Why the exit from the wardrobe matters

Norway's textile flows are large, but the figures are uncertain. A 2026 NORSUS report estimates that 87,531 tonnes of new clothing, footwear and household textiles were placed on the Norwegian market in 2025, about 15.5 kilograms per person. It also estimates that 44,461 tonnes of used textiles and textile waste went into residual waste or energy recovery. Sorting analyses suggested that 40 percent of that discarded material could be reused directly or prepared for reuse through repair, while 33 percent could be suitable for material recycling. NORSUS (2026).

Those are system-wide estimates covering clothing, footwear and household textiles, not a count of children's clothes. The report repeatedly warns that import, waste, reuse and export data contain substantial uncertainty. It also notes that private hand-me-downs, swaps and sales are not fully captured. The numbers show scale; they do not tell us exactly how much one family can save by organising a wardrobe.

Another Norwegian study followed 28 households for six months and examined 3,556 textiles they removed from their wardrobes. Damage was one reason, but so were changing taste, poor fit, changing bodies and new life situations. Having children and other major transitions could create periods with more clothes leaving the wardrobe. This is an in-depth study of how disposal happens, not a national estimate. OsloMet's overview of Sigaard's doctoral research (2026).

The practical lesson is modest: deciding a garment's next step while you still remember its condition, size and season makes it easier to keep it in use. Waiting for an overflowing, mixed box makes that decision harder.

Build one reliable “fits now” record

Start with the clothing decisions that regularly cause uncertainty: shoes, outerwear, tops, bottoms, hats or gloves. For each useful entry, record:

• the size exactly as shown on the label, including EU, UK or US where relevant;
• the date it fitted;
• the brand or model when fit varies noticeably;
• one short note only when it will help the next decision.

A good note is concrete: EU 35, Brand A, fitted 12 October; narrow at the toes. Avoid predictions such as “will fit all winter” or value judgments about the child's body. Growth does not follow your shopping calendar, and a clothing record is not a medical growth record.

You do not need to measure everything. Record a body measurement only when it answers a current shopping question, such as inseam for trousers or head circumference for a helmet or hat. Explain why, measure privately and stop if the child is uncomfortable. Weight is not needed for this wardrobe system.

Update an entry after a successful fitting or purchase, rather than on a rigid schedule. Before somebody buys a gift, they should check both the value and the date. An old size is a warning to ask, not an answer to shop from.

Give every garment one of four states

Do a short wardrobe reset at the change of season or when several items become tight. Each garment gets one next state:

1. Wear now. It fits, the child will use it and it suits the season.
2. Next size or season. It has a realistic future user and a date when you will review it.
3. Repair. The repair is specific, assigned and worth doing.
4. Pass on or sort. It leaves the household while its condition and size are still clear.

This prevents “keep” from becoming the default for every garment. A next-size box should contain clothes that are actually likely to be used, not every item that could theoretically fit one day.

Label stored clothes with more than one number. Add the garment type, season and intended child: Mina — 140 — winter — review September. Keep an inventory short enough to trust. “Two wool jumpers, rain trousers and ski trousers” is more useful than “clothes, size 140”.

Norwegian waste guidance distinguishes reusable textiles from textile waste. Items for reuse should be whole, clean, dry and usable. Worn or damaged but dry textiles should go to textile-waste collection, while wet, mouldy or heavily soiled textiles belong in residual waste. Follow the local collector's instructions because collection arrangements can differ. Norwegian Environment Agency.

Use a five-minute check before buying

Before ordering, accepting a hand-me-down or telling a grandparent what to buy, check:

1. How recent is the size? A dated value can reveal that a new fitting is needed.
2. Which brand or chart applies? Use the maker's current chart for the specific product.
3. What does the child already have? Check both the wardrobe and the next-size box.
4. Will the child use it? Ask about comfort, colour and style when they can take part.
5. Can it be tried or returned? This matters when fit is uncertain.

For protective equipment and specialist footwear, follow the manufacturer's fitting instructions and use qualified help where needed. A family record can narrow the search, but it cannot verify safety or fit.

Keep the shared answer in Famn

In Famn, Sizes belong to a person. You can record clothing, shoe and body sizes with a date, scale, brand and note, and choose who can see the entry. Famn shows one current value for each type. Adding a newer value keeps the old one instead of overwriting it. Recording sizes and seeing the current value are available on the free plan; viewing earlier values is a Premium feature. Read the Sizes guide for the full details.

For shoes, Famn can display an equivalent in another size system using a selected reference chart. Treat that as a guide. Brands and models differ, and the conversion does not change the saved size or guarantee fit.

If your next-size clothes live in boxes, an Other Storage List can record what is in each box and where it is stored. The storage list and the person's size record are separate: one tells you what you own, the other what currently fits.

Keep the notes neutral and useful. Because body measurements and fit can feel private, choose the audience deliberately and include only what the household needs for the next practical decision. Famn does not assess a child's growth or health.

A 20-minute seasonal reset

Set aside 20 minutes when the weather changes or a growth spurt becomes obvious:

1. Let the child try the uncertain essentials: shoes, outerwear and everyday trousers.
2. Update only the size entries that changed.
3. Bring forward useful clothes from the next-size box.
4. Move outgrown items straight to repair, a named recipient, sale, donation or the correct waste stream.
5. Write a short gap list: one pair of rain trousers, one warm jumper.

The goal is not a perfectly catalogued wardrobe. It is that the next person can make a good decision without guessing, and that a useful garment reaches its next user before the opportunity passes.

What the evidence can and cannot tell us

The Norwegian parent and wardrobe studies cited here are qualitative and help explain decisions; they do not establish how widespread each pattern is. The study of belonging concerned a particular age group in Oslo. National textile figures combine several product categories and carry substantial uncertainty.

No cited study tested this four-state method, a shared size record or Famn, and the evidence does not prove that using an app causes families to buy less or waste fewer clothes. The method is a practical response to recurring problems identified in the research: uncertain information, changing fit, unused clothes and difficult handovers. Judge it by simpler outcomes at home: fewer guesses, fewer forgotten boxes and more clothes that are actually worn.

Sources

1. Klepp, I. G. and Haugrønning, V. (2021). “Durable or cheap? Parents' acquisition of children's clothing.” PLATE 2021 Conference Proceedings. SIFO/OsloMet PDF.
2. Haugsrud, I., Klepp, I. G. and Reich, N. (2025). “Dressed for belonging. Children's use of clothing to create equality.” Research overview and chapter reference. OsloMet.
3. de Sadeleer, I. and Rubach, S. (2026). Knowledge status for textiles and textile waste in Norway. NORSUS report OR.18.26. NORSUS PDF.
4. Sigaard, A. S. (2026). Want Not, Waste Not: Consumer behaviour and the disposal of clothing and other textiles. Doctoral research overview. OsloMet.
5. International Organization for Standardization (2025). ISO 8559-2:2025 — Size designation of clothes. ISO.
6. Norwegian Environment Agency. “Waste types and requirements for sorting.” Accessed 19 October 2026. Miljødirektoratet.