Size guide
ON7 sizes are height in centimetres, the way European kidswear is cut. Measure your child against a wall, find the band their height falls into, and that is the size.
92–152
Nine sizes,
ages 2 to 12
ages 2 to 12
½
Step larger
than the label
than the label
2
Sizes? Order both,
return one free
return one free
The chart
| ON7 size | Age | Height cm | Chest cm | Waist cm | Inside leg cm |
|---|---|---|---|---|---|
| 92 – 98 | 2 – 3 | 92 – 98 | 53 – 55 | 51 – 52 | 33 – 36 |
| 98 – 104 | 3 – 4 | 98 – 104 | 55 – 57 | 52 – 53 | 36 – 39 |
| 104 – 110 | 4 – 5 | 104 – 110 | 57 – 59 | 53 – 54 | 39 – 42 |
| 110 – 116 | 5 – 6 | 110 – 116 | 59 – 61 | 54 – 55 | 42 – 45 |
| 116 – 122 | 6 – 7 | 116 – 122 | 61 – 64 | 55 – 57 | 45 – 48 |
| 122 – 128 | 7 – 8 | 122 – 128 | 64 – 67 | 57 – 58 | 48 – 51 |
| 128 – 134 | 8 – 9 | 128 – 134 | 67 – 70 | 58 – 60 | 51 – 54 |
| 134 – 140 | 9 – 10 | 134 – 140 | 70 – 73 | 60 – 62 | 54 – 57 |
| 146 – 152 | 11 – 12 | 146 – 152 | 76 – 80 | 64 – 66 | 58 – 61 |
Between two sizes? Take the larger.
Everything we make is cut about half a step big already, and the hoodies and joggers have ribbed cuffs that fold back. So a size up wears correctly now and is simply unfolded next winter. That is the whole point of how they are cut.
How to measure
01
Height
Shoes off, heels and back against a wall, looking straight ahead. Mark the top of the head and measure down to the floor. This is the only measurement you strictly need.
02
Chest
Around the fullest part, under the arms, arms down. Tape flat but not tight.
03
Waist
Around the natural waist, roughly level with the belly button. Do not pull it in.
04
Inside leg
From the crotch to the ankle bone, standing straight.
How the fit runs
Hoodies and sweatshirts
Oversized through the body with a dropped shoulder. Sleeves are deliberately long, with cuffs that fold back.
Joggers and shorts
Roomy through the hip and thigh, tapering to a ribbed ankle. Elastic waist with a drawcord they can manage alone.
Tees
Boxy and slightly cropped in the body, so they sit right over joggers rather than bunching.
Dresses
Straight through the body with built-in shorts underneath.
Still not sure?
Email us your child's height and we will tell you which band to take. Or order two sizes, keep the one that fits, and send the other back free within 7 days — it costs you nothing and it is the fastest way to settle it.
Get the size right first time
Message us their height in centimetres. We answer within a working day, usually within minutes.