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O'Neill, the original California surf, snow and youth lifestyle brand, was founded in 1952 when a young man named Jack O'Neill took his unstoppable passion for surfing and used it to beat Mother Nature at her own game.

Pioneering the first neoprene surfing wetsuit, Jack had successfully found a way to extend his surf sessions in the bone-chilling breaks of Northern California. He opened up the garage doors to his first surf shop in Santa Cruz soon after.

While many things have changed since those humble beginnings, Jack's initial vision of producing functional and innovative board riding products continues to lie at the core of everything the company does. O'Neill's core values—innovation in style and technology—have seen the brand devote itself wholeheartedly to the evolution of the action sports lifestyle. From the first line of surfing wetsuits and surf leash, to the world's first stitchless boardshorts, and range of groundbreaking wearable electronics, O'Neill's progressive spirit will always drive the company forward.

Size Guide

Men Tops

Product size Chest in cm Waist in cm
XS 87-92 72-77
S 93-97 78-82
M 98-102 83-87
L 103-107 88-93
XL 108-114 94-99
XXL 115-122 100-107

Men Bottoms

Product size Pant size Waist in cm Hip in cm
XS 28-29 72-77 87-91
S 30-31 78-82 92-96
M 32-33 83-87 97-101
L 34 88-93 102-106
XL 36 94-99 107-112
XXL 38 100-105 113-118

Men Skins & UV Protection

Your size Product size
2XS 2XS
XS XS
S S
M M
L L
XL XL
2XL 2XL
3XL 3XL
4XL 4XL

Men Footwear

Product Size EU UK USA Flip flop insole length in mm
39 6 7 260
40 7 8 267
41 7/8 8/9 274
42 8 9 280
43 9 10 287
44 10 11 294
45 11 12 300
46 12 13 307
47 13 14 314
O'Neill Mens Size Chart

Women Tops

Product size Chest in cm Waist in cm
XS 80-84 60-64
S 85-89 65-69
M 90-94 70-74
L 95-99 75-79
XL 100-104 80-84

Women Bottoms

Product size Pant size Waist in cm Hip in cm
XS 25-26 60-64 86-90
S 27-28 65-69 91-95
M 29-30 70-74 96-100
L 31-32 75-79 101-105
XL 33-34 80-84 106-110

Bikini Tops & Bottoms

Product Size EU Chest B-cup in cm Chest C-cup in cm Chest D-cup in cm Underbust in cm Waist in cm Hip in cm
34 80 82 84 63-67 60-64 86-90
36 85 87 89 68-72 65-69 91-95
38 90 92 94 73-77 70-74 96-100
40 95 97 99 78-82 75-79 101-105
42 100 102 104 83-87 80-84 106-110
44 105 107 109 88-92 85-89 111-115

Women Footwear

Product Size EU UK USA Flip flop insole length in mm
36 3/4 5/6 240
37 4 6 247
38 5 7 254
39 6 8 260
40 7 9 267
41 7/8 9/10 274
42 8 10 280
O'Neill Womens Size Chart

Boys Tops & Bottoms

Age Product size Chest size in cm Waist size in cm Hip size in cm
2 92 54 49 54
3 98 55 50 56
4 104 56 51 58
5 110 57 52 60
6 116 58 53 62
7 122 60 54,5 64
8 128 62 56 66
9 134 64 57,5 68
10 140 66 59 70
11 146 69 61,5 73
12 152 72 64 76
13 158 75 66,5 79
14 164 78 69 82
15 170 81 71,5 85
16 188 84 74 88

Boys Footwear

Product Size EU UK USA
30 11/12 12/13
31 12 13
32 13 1
33 1 2
34 2 3
35 2/3 3/4
36 3/4 4/5
37 4 5
38 5 6
39 6 7
40 7 8

Girls Tops & Bottoms

Age Product size Chest size in cm Waist size in cm Hip size in cm
2 92 52 51 54
3 98 54 52 56
4 104 56 53 58
5 110 58 54 60
6 116 60 55 62
7 122 62 56 64
8 128 64 57 66
9 134 67 58,5 69,5
10 140 70 60 73
11 146 73 61,5 76,5
12 152 76 63 80
13 158 79 65 83,5
14 164 82 67 87
15 170 85 69 90,5
16 188 88 71 94

Girls Footwear

Product Size EU UK USA
32 1 1,5
33 2 2,5
34 2,5 3
35 3 4
36 3,5 4,5
37 4,5 5,5
38 5 6
39 6 7

*  Sizing information is provided by the manufacturer and does not guarantee a perfect fit.