Patagonia Women's Top Size Chart

Size	Numeric Size	Chest*	Waist	Hip
XXS	00	31.5 in	24.5 in	34 in
	0	32.5 in	25.5 in	35 in
XS	2	33.5 in	26.5 in	36 in
	4	34.5 in	27.5 in	37 in
S	6	35.5 in	28.5 in	38 in
	8	36.5 in	29.5 in	39 in
M	10	37.5 in	30.5 in	40 in
	12	39 in	32 in	41.5 in
L	14	41 in	34 in	43.25 in
	16	43 in	36 in	45 in
XL	18	45 in	38 in	47 in
	20	47 in	40 in	49 in
XXL	22	49 in	42 in	51 in

* Chest is usually the best size predictor. However, if your hip measurement is larger, consider buying the size indicated for your hips.