Picking a kid's jersey size is the leading cause of returns in sportswear e-commerce. Junior sizing doesn't follow the same conventions as adult sizing, and kids grow fast. Here's the exact chart, 2025-2026 season.
Age / size / cm chart
| Age | Junior size | Height (cm) | Chest |
|---|---|---|---|
| 2-3 y/o | Junior XXS | 92-98 cm | 50-52 cm |
| 4-5 y/o | Junior XS | 104-110 cm | 54-56 cm |
| 6-7 y/o | Junior S | 116-122 cm | 58-62 cm |
| 8 y/o | Junior S/M | 128 cm | 64-66 cm |
| 9-10 y/o | Junior M | 134-140 cm | 68-72 cm |
| 11-12 y/o | Junior L | 146-152 cm | 74-78 cm |
| 13-14 y/o | Junior XL / Adult S | 158-164 cm | 80-84 cm |
| 15-16 y/o | Adult S/M | 170-176 cm | 86-92 cm |
Note: These sizes are indicative. Nike, Adidas and Puma differ by up to 4 cm for the same label. Most reliable measurement = chest, taped.
How to measure a kid without messing up
- Chest. Run the tape under the arms, around the chest, chest relaxed. Note the number.
- Torso length. From the base of the neck (just above the collarbone) down to the lower back, tape flush.
- Height in cm. Standing, back to a wall, no shoes. Mark the height, measure to the floor.
Cross these 3 numbers with the chart. If all 3 point to the same size = confidence. If 2 point to one size and 1 to the next = go bigger.
The 4 classic mistakes
- Buying "big" to anticipate growth. Skipping 2 sizes = sleeves hanging, shoulders slipping, kid uncomfortable. Skipping 1 = OK for one year. Skipping 2 = never.
- Going only by age. Two 8-year-olds can be 15 cm apart. Always check height in cm and chest measurement.
- Buying the same size as the previous jersey. Kids grow — last year's size is never today's. Re-measure every purchase.
- Adult XS for a pre-teen. Adult XS is longer in the torso but wider under the arms than Junior XL. A 13-14 year old fits Junior XL better. At 15, try adult S.
When to switch to adult sizing?
Practical benchmarks:
- 158 cm and 78 cm chest: still Junior XL
- 164 cm and 82 cm: try Adult S (longer, more mature cut)
- 170 cm and 90 cm: Adult S or M depending on build
If in doubt, go junior: the adult cut quickly becomes floaty for a lean teen.
Kids printing and personalization
On kids jerseys, name + number printing is included in the price just like adult jerseys. Two common options:
- Favourite player name: Mbappé, Vinicius, Haaland, Salah, Yamal... You show off your kid's idol.
- The kid's own name: full personalization, guaranteed "wow" effect on unboxing.
Tip: for a surprise gift, favourite player always works; for a birthday or a highly-anticipated gift, the kid's own name makes a stronger keepsake.
Ready to order?
Our jerseys come in junior sizes S to XL and adult sizes S to XXXL. Name + number printing included, free shipping from 2 jerseys to France, Belgium, Netherlands, Luxembourg, Germany, Austria, Ireland, United Kingdom, Switzerland, Spain, Portugal, Italy, Greece, Poland, Slovakia, Slovenia, Sweden, Denmark, Finland and Australia.
