Sizing Charts

SMALLER
0-6 mos*
6-9 mos*
9-12 mos*
12-18 mos*
18-24 mos*
LENGTH (in)
4.2 in
4.5 in
4.8 in
5.2 in
5.5 in
LENGTH (cm)
10.7 cm
11.5 cm
12.3 cm
13.1 cm
13.9 cm

SEE KAI RUN
3
4
5
6
7
8
9
EU SIZE
19
20
21
22
23
24
25
AGE*
6-9 mos
9-12 mos
12-18 mos
18-24 mos
2 years
2.5 years
3 years
LENGTH (in)
4.5 in
4.8 in
5.2 in
5.5 in
5.8 in
6.1 in
6.4 in
LENGTH (cm)
11.5 cm
12.3 cm
13.1 cm
13.9 cm
14.7 cm
15.5 cm
16.3 cm

KAI
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
EU SIZE
24
24
25
26
27
28
29
29
30
30
31
AGE*
2.5-3 years
2.5-3 years
3-3.5 years
3-3.5 years
3.5-4 years
3.5-4 years
4-4.5 years
4-4.5 years
4.5-5 years
5-5.5 years
5.5-6 years
LENGTH (in)
6.1 in
6.3 in
6.4 in
6.6 in
6.7 in
6.9 in
7 in
7.2 in
7.4 in
7.5 in
7.7 in
LENGTH (cm)
15.5 cm
15.9 cm
16.3 cm
16.7 cm
17.1 cm
17.5 cm
17.9 cm
18.3 cm
18.7 cm
19.1 cm
19.5 cm

ORGANIC SOCKS
0-6 mos*
6-12 mos*
0-12 mos*
1-2 years*
2-3 years*
3-4 years*
5-6 years*
SHOE SIZES
0-6 mos
sizes 3-4
sizes 0-4
sizes 5-6
sizes 7-8
sizes 9-11
sizes 12-13

ONESIES
6-12 mos*
12-18 mos*
18-24 mos*
WEIGHT
16-22 lbs
23-27 lbs
28-30 lbs
CHEST
16 in
18 in
20 in

T-SHIRTS
2 years*
4 years*
6 years*
WEIGHT
31-34 lbs
35-41 lbs
42-45 lbs
CHEST
21 in
22 in
23 in

*Age is approximate. Please measure for best fit.

How to Measure Your Child's Feet:

Smaller, See Kai Run & Kai printable sizing chart


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