Find the right size
HappySkin works best with a snug fit: close to the skin, not tight and not loose. Use the baby chart for under 3s and the child chart from 3 years. Go by height as well as age, because children grow at different rates.
| Size | Weight | Height |
|---|---|---|
| 0 to 3 months | 6 kg | 62 cm |
| 3 to 6 months | 8 kg | 69 cm |
| 6 to 9 months | 9 kg | 72 cm |
| 9 to 12 months | 10 kg | 76 cm |
| 12 to 18 months | 11 kg | 83 cm |
| 18 to 24 months | 12.5 kg | 90 cm |
| 2 to 3 yearsIn both charts | 14.5 kg | 98 cm |
| Age | Height | Chest | Waist |
|---|---|---|---|
| 2 to 3 yearsIn both charts | 98 cm | 54 cm | 52 cm |
| 3 to 4 years | 104 cm | 56 cm | 53½ cm |
| 4 to 5 years | 110 cm | 58 cm | 55 cm |
| 5 to 6 years | 116 cm | 61 cm | 56 cm |
| 6 to 7 years | 122 cm | 63 cm | 57 cm |
| 7 to 8 years | 128 cm | 66 cm | 59 cm |
| 8 to 9 years | 134 cm | 69 cm | 61 cm |
| 9 to 10 years | 140 cm | 72 cm | 63½ cm |
| 10 to 11 years | 146 cm | 75 cm | 66 cm |
| 11 to 12 years | 152 cm | 78 cm | 68 cm |
2 to 3 years is in both charts: as a baby size (bodysuit, sleepsuit, leggings) and as the first child size. Measurements are in centimetres and kilograms.
Sizing questions
How do I know which chart to use?
Under 3 years old, use the baby chart. From 3 years, use the child chart. Check their height as well as their age, because growth rates vary a lot.
How do I choose the right size?
Match their height (and weight, for babies) to the closest size in the right chart. The fit is meant to be snug, so there is no need to size up unless they are at the very top of a size.
Are HappySkin sizes true to age?
Yes. Both charts follow standard UK and European measurements. Every child grows differently, so measure rather than going by age alone.
Why do you recommend a snug fit?
The DreamSkin coating is on the fabric itself, so it has to touch the skin to work. If the garment is loose, the coating is not in contact with the skin. A snug fit also means less rubbing.
What if I order the wrong size?
You can exchange it within 30 days, as long as it is unworn and unwashed. We’ll help you swap to the right size from either chart. See our returns and exchanges information or contact us.
Before you order
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Measure, don’t guess
Measure their height standing straight, without shoes. For babies, weigh them too.
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Choose snug
Close to the skin but not tight. Only size up if they are at the very top of a size.
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Wrong size?
Exchanges within 30 days on unworn, unwashed items.
Know their size?
Everything is a base layer, worn next to the skin under normal clothes or as nightwear.
UK delivery £2.99, free on orders of £50 and over.