Childrenchic (Marjen) Size & Fit Guide 2026: EU to US Sizes, Cassie Sizing and Exchanges
You trace a small foot on a sheet of paper on the kitchen floor while your child wriggles, then squint at a size chart that mixes EU and US numbers and wonder whether a 26 is a 9 or a 10. Ordering kids' shoes online is mostly a sizing problem, and European brands like Marjen — formerly Childrenchic — add an extra layer, because everything is made and labeled in EU sizes first.
This size and fit guide pulls together what Marjen publishes on its product pages, sizing notes, care page and exchange policy, checked by TinyTrialsLab in October 2026, so you can order with fewer surprises.
How Marjen Labels Its Sizes
Every Marjen size is shown as an EU size paired with a US size, and the product pages group them into four ranges:
| Range | EU sizes | US sizes |
|---|---|---|
| Infant | 18–19 | 2–3 |
| Toddler | 20–23 | 4–7 |
| Children | 24–31 | 8–13.5 |
| Youth | 32–38 | 1–6 |
A few EU-to-US pairings worth knowing from the listings: 25 EU is 8.5 US, 31 EU is 13.5 US, and 35 EU is 3.5 US. Loafers such as Alex, Sam and Tiago extend further, up to 44 EU / 10.5 US. Not every style comes in every range — Gracie boots, for example, run from 22 EU / 6 US to 34 EU / 3 US, while the Rebecca sandals stop at 30 EU / 13 US.
Style-by-Style Fit Notes
Cassie velvet Mary Jane: size up
This is the clearest fit note Marjen gives: "The Cassie runs small. We recommend sizing up." Cassie ($66) has an adjustable Velcro strap that gives some room to adjust as feet grow, a cushioned padded insole and a non-slip rubber sole. It's offered from 18 EU / 2 US to 38 EU / 6 US, depending on color.
Velcro styles: most adjustable
Many Marjen Mary Janes — Cassie, Holly, Alma, Mila and Gracie boots among them — close with an adjustable Velcro strap. The brand points out these let little ones fasten their own shoes. If your child is between sizes, an adjustable strap is more forgiving than a fixed slip-on.
Elastic-strap styles: slip-on ease
Blair ($64) uses a comfortable elastic strap so it slips on easily while staying secure. Because the strap doesn't adjust, getting the length right matters more.
Buckle styles
Claude ($66), a black or taupe velvet Mary Jane, uses an adjustable buckle strap instead of Velcro — a dressier look for kids who don't need to fasten shoes on their own yet.
Chelsea boots: zip and stretch
Olivia ($84), Simona ($110) and Monica ($92) Chelsea boots use a side zipper for easy on and off and elastic side panels for a comfortable fit. The zipper makes them easier to get over thicker winter socks.
Loafers: a structured fit
Alex leather loafers and Sam and Tiago suede loafers ($89) are classic slip-on penny loafers with rubber soles. There's no strap to adjust, so measure carefully.
Five Ways to Get the Size Right
- Check the specific style's size list before falling in love with it — ranges vary from shoe to shoe and some sizes sell out.
- Follow the brand's notes, especially "size up" for Cassie.
- Compare with a pair that fits now, and think about the socks or tights they'll wear with these shoes.
- Favor adjustable straps if your child is between sizes.
- Use the exchange window. Marjen accepts exchanges within 30 days, so try shoes on indoors the day they arrive and keep the box.
Marjen Styles by Fit Type
One style for each closure type, priced in October 2026.
Prices change often; the brand's site always shows the current price.
Exchanges, Returns and the Fine Print
| Situation | What Marjen allows |
|---|---|
| Wrong size, full-price order | Exchange within 30 days, or return within 15 days of delivery |
| Return label | $13 fee |
| Sale styles | Exchange or store credit only |
| More than 50% off | Exchange or store credit only |
| Promotions and bundles | Final sale |
| International orders | Final sale, no returns, exchanges or store credit |
If you plan to use the current "buy three pairs, get Holly free" or "buy Cassie, take 15% off boots" offers, remember the final-sale rule for promotions and double-check every size first.
Caring for the Right Pair
A well-fitting pair can be passed down if it's cared for. Marjen's care page breaks it down by material:
- Velvet: keep it dry, brush with a soft fabric brush or woolen cloth in the direction of the pile, and lightly steam to refresh. Some flattening in high-wear spots is normal.
- Canvas: spot clean with mild soap and water and air dry. The machine-washable canvas styles go in cold water on a gentle cycle, then air dry.
- Suede: brush periodically, apply suede protector before first wear and skip leather conditioner.
- Leather: wipe with a soft damp cloth and condition occasionally; conditioner can slightly darken it.
- Glitter and metallic: wipe gently with a soft dry cloth and avoid water, oils, solvents and rough surfaces.
Size and Fit FAQ
Does Marjen use US or EU sizing?
Both. Each size is shown as an EU size with its US equivalent, for example 24 EU / 8 US.
Which Marjen shoes run small?
The brand specifically says the Cassie runs small and recommends sizing up.
What's the largest size available?
Loafers like Alex, Sam and Tiago go up to 44 EU / 10.5 US. Most Mary Janes top out around 36–38 EU.
Can I exchange for a different size?
Yes, within 30 days. Promotional purchases are final sale.
The Verdict
Marjen's sizing is straightforward once you read it the European way: check each style's EU/US list, size up for Cassie, choose Velcro when in doubt and lean on the 30-day exchange window. Find the pair, then check our Marjen (Childrenchic) deals page for the current offer before you order.
How we wrote this: TinyTrialsLab compiled this guide from Marjen's (formerly Childrenchic) product pages, size listings, care instructions and return policy in October 2026. We haven't personally tested these products and we don't invent ratings or discount codes. We may earn a commission if you buy through our links, at no extra cost to you.