Size | Body Length | Shoulder Width | Chest Width |
0-3M | 17 | 15.25 | 33.5 |
3-6M | 18.5 | 15.75 | 35.5 |
6-9M | 20 | 16.25 | 37.5 |
9-12M | 21.5 | 17 | 40 |
12-18M | 22.75 | 17.5 | 42.5 |

(1) Body Length: Start from where the shoulder seam meets the neckline, and measure down to the hem of the garment.
(2) Shoulder Width: Measure from the inside shoulder seam across to the opposite inside shoulder seam.
(3) Chest Width: From one inch below the armhole seam, measure directly across the body. Measurements are shown in full circumference, including the front and back.
(4) Sleeve Length: From the middle of the neckline, across to where the shoulder seam meets the body, then down to the sleeve opening.
Kith Baby Apparel Size Chart
SIZE | HEIGHT | CHEST | WAIST | INSEAM |
0-3M | 20 - 23 | 17 | 17.5 | 4 - 6 |
3-6M | 23 - 26 | 18 | 18.5 | 6 - 7 |
6-9M | 26 - 28 | 18.5 | 19 | 7 - 8 |
9-12M | 28 - 30 | 19 | 19.5 | 8 - 9 |
12-18M | 30 - 32 | 19.75 | 20.5 | 9 - 10 |
How To Measure
1. HEAD CIRCUMFERENCE - Measure by wrapping tape around your head at the point where the hat will sit- above eyebrows
2. CHEST - Measure at the fullest part of your chest under your arm
3. WAIST - Measure at the narrowest point- above your navel
4. INSEAM - Measure in a straight line from crotch to ankle bone

Fit Tips
- If you’re on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a more relaxed fit.
- If your measurements for chest and waist correspond to two different suggested sizes, order the size indicated by your chest measurement.
- OS=One Size