Unisex Onesie Size Chart

Our swimzi (onsie) is unisex and generously sized for a swimmers physique. It is designed to be worn loose with a slouchy, relaxed fit.

If you would prefer a less slouchy fit go down a size.

The sizes are based on:

Height (A)  - measured head to foot

Chest (B) - measured around the fullest part

Size	Height (cm)	Chest (cm)	Height (ft/ins)	Chest (ins)
7/8	115 -125	58-62	3' 9" - 4' 1"	22.8 - 24.4
9/10	125-135	62-67	4' 1" - 4' 5"	24.4 - 26.3
11/12	135-145	67-74	4' 5" - 4' 9"	26.3 - 29.1
13	145-155	74-81	4' 9" - 5' 1"	29.1 - 31.9
XS	155-165	81-89	5' 1" - 5' 5"	31.9 - 35.0
S	165-175	89-96	5' 5" - 5' 9"	35.0 - 37.7
M	175-185	96-104	5' 9" - 6' 1"	37.7 - 40.9
L	185-195	104-111	6'1" - 6' 4"	40.9 - 43.7
XL	195+	111-119	6' 4" +	43.7 - 46.8