O'Neill wetsuit size chart

Men's

Size	Height	Weight (lb)	Chest (in)
XS	5′7″–5′9″	125–140	37–38
S	5′8″–5′10″	135–155	38–39
ST	6′0″–6′2″	145–165	38–39
MS	5′7″–5′9″	145–165	39–41
M	5′9″–5′11″	155–170	39–41
MT	6′1″–6′3″	160–180	39–41
LS	5′8″–5′10″	160–180	41–44
L	5′10″–6′0″	170–190	41–44
LT	6′2″–6′4″	180–200	41–44
XLS	5′9″–5′11″	180–200	44–46
XL	5′11″–6′1″	190–210	44–46
XLT	6′3″–6′5″	200–220	44–46
2XLS	5′10″–6′0″	200–220	46–49
2XL	6′0″–6′2″	210–230	46–49
3XL	6′0″–6′3″	230–250	49–51
4XL	6′1″–6′4″	250–270	51–54

Find your O'Neill size in other brands (Men's) →

Women's

Size	Height	Weight (lb)	Chest (in)
2	5′1″–5′3″	90–105	30–32
4	5′3″–5′5″	100–115	31–33
6S	5′3″–5′5″	105–120	32–34
6	5′4″–5′6″	110–125	32–34
8S	5′4″–5′6″	115–130	33–35
8	5′5″–5′7″	120–135	33–35
8T	5′7″–5′9″	125–140	33–35
10S	5′5″–5′7″	125–145	34–36
10	5′6″–5′8″	130–150	34–36
10T	5′8″–5′10″	135–155	34–36
12S	5′6″–5′8″	135–155	36–38
12	5′7″–5′9″	140–160	36–38
12T	5′9″–5′11″	145–165	36–38
14	5′8″–5′10″	150–170	37–39
16	5′9″–5′11″	165–185	39–41

Find your O'Neill size in other brands (Women's) →

From us.oneill.com, men's and women's

Size ranges come from each brand's published full-wetsuit chart, read in October 2026. Brands update their charts, so check the brand's own chart before you buy. Charts marked "via" are a retailer's copy, used because the brand's own page couldn't be read.