How to measure:
- Chest: With your arms relaxed by your side, measure around the fullest part of your chest.
- Waist: Measure around your natural waistline.
- Hips: Measure around the fullest part at the top of your hips.
Boys tops & bottoms
Age |
Product Size (EU) |
Chest Size (cm) |
Waist Size (cm) |
Hip Size (cm) |
1.5-2 |
92 |
54 |
49 |
54 |
2-3 |
98 |
55 |
50 |
56 |
3-4 |
104 |
56 |
51 |
58 |
5-6 |
116 |
58 |
53 |
62 |
7-8 |
128 |
62 |
56 |
66 |
9-10 |
140 |
66 |
59 |
70 |
11-12 |
152 |
72 |
64 |
76 |
13-14 |
164 |
78 |
69 |
82 |
14-15 |
176 |
84 |
74 |
88 |
Girls tops & bottoms
Age |
Product Size (EU) |
Chest Size (cm) |
Waist Size (cm) |
Hip Size (cm) |
1.5-2 |
92 |
52 |
51 |
54 |
2-3 |
98 |
54 |
52 |
56 |
3-4 |
104 |
56 |
53 |
58 |
5-6 |
116 |
60 |
55 |
62 |
7-8 |
128 |
64 |
57 |
66 |
9-10 |
140 |
70 |
60 |
73 |
11-12 |
152 |
76 |
63 |
80 |
13-14 |
164 |
82 |
67 |
87 |
14-15 |
176 |
88 |
71 |
94 |
Kids footwear
O'Neill product size (EU) | UK size | USA size | Footwear length closed-toe (cm) | Footwear length sandals (cm) |
30 | 11/12 | 12/13 | 19.4 | 20.0 |
31 | 12 | 13 | 20.0 | 20.7 |
32 | 13 | 1 | 20.7 | 21.4 |
33 | 1 | 2 | 21.4 | 22.0 |
34 | 2 | 3 | 22.0 | 22.7 |
35 | 2/3 | 3/4 | 22.7 | 23.4 |
36 | 3/4 | 4/5 | 23.4 | 24.0 |
37 | 4 | 5 | 24.0 | 24.7 |
38 | 5 | 6 | 24.7 | 25.4 |
39 | 6 | 7 | 25.4 | 26.0 |
Kids wetsuits
If your measurements border on the top end of your chosen size, go for the next size up. Check out our collection of kids' wetsuits!
O'Neill product size |
Length (cm) |
Weight (kg) |
Chest (cm) |
Waist (cm) |
1 |
88-98 |
11-13.5 |
48-53 |
45.5-51 |
2 |
98-108 |
13.5-16 |
51-56 |
48-53 |
3 |
108-118 |
16-18 |
53-58 |
51-56 |
4 |
118-126 |
18-25 |
58-64 |
51-56 |
6 |
126-133 |
22.5-29.5 |
62-67 |
55-60 |
8 |
133-141 |
27-34 |
66-71 |
58-64 |
10 |
141-147 |
34-41 |
71-76 |
58-64 |
12 |
147-155 |
41-48 |
74-79 |
64-69 |
14 |
155-163 |
48-54.5 |
79-84 |
69-74 |
16 |
163-170 |
54.5-61 |
84-89 |
71-76 |
Kids skins & UV-protection
O'Neill product size |
Height (cm) |
Weight (kg) |
Chest (cm) |
Waist (cm) |
6M |
58-68.5 |
5-7.5 |
43 |
42-44.5 |
12M |
68.5-73.5 |
7.5-10 |
46 |
44.5-47 |
18M |
73.5-79 |
10-12 |
48 |
47-49.5 |
1 |
88-98 |
11-13.5 |
48-53 |
45.5-51 |
2 |
98-108 |
13.5-16 |
51-56 |
48-53 |
3 |
108-118 |
16-18 |
53-58 |
51-56 |
4 |
118-126 |
18-25 |
58-64 |
51-56 |
6 |
126-133 |
22.5-29.5 |
62-67 |
55-60 |
8 |
133-141 |
27-34 |
66-71 |
58-64 |
10 |
141-147 |
34-41 |
71-76 |
58-64 |
12 |
147-155 |
41-48 |
74-79 |
64-69 |
14 |
155-163 |
48-54.5 |
79-84 |
69-74 |
16 |
163-170 |
54.5-61 |
84-89 |
71-76 |
Kids impact vests
O'Neill product size |
Weight (kg) |
Chest (cm) |
8 |
27-34 |
66-71 |
10 |
34-41 |
71-76 |
12 |
41-48 |
74-79 |
14 |
48-54.5 |
79-84 |
16 |
54.5-61 |
84-89 |
Kids wetsuit boots
Please note that our wetsuit boots are listed in US size. Convert your size in the chart below.
O'Neill product size (US) |
EU size |
UK size |
XS |
26-27 |
7-8 |
S |
28-29 |
9-10 |
M |
30-31 |
11-12 |
L |
32-33 |
13-1 |
XL |
34-35 |
2-3 |
Kids wetsuit hoods & caps
O'Neill product size |
Neck (cm) |
Head (cm) |
10 |
31.5-34 |
55-58 |
12 |
33-35.5 |
57-59.5 |
14 |
34-37 |
57.5-60 |
16 |
35.5-38 |
58-61 |
Kids wetsuit gloves
- Hand length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
- Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.
O'Neill product size |
Hand length (cm) |
Circumference (cm) |
S |
14.6-15.9 |
15.2-16.5 |
M |
15.2-16.5 |
15.9-17.1 |
L |
15.9-17.1 |
16.5-17.8 |
XL |
16.5-17.8 |
17.1-18.4 |