Women's A2 by Aerosoles Ride with Me Shaft Size Chart
	US Size	Shaft height	Circumference (zipped)	Circumference (unzipped)
	5M	15.43	14.17	15.16
	5.5M	15.59	14.41	15.59
	6M	15.75	14.65	15.83
	6.5M	15.91	14.88	16.06
	7M	16.06	15.12	16.3
	7.5M	16.22	15.35	16.54
	8M	16.38	15.59	16.77
	8.5M	16.54	15.83	17
	9M	16.69	16.06	17.24
	9.5M	16.85	16.3	17.48
	10M	17.01	16.54	17.42
	10.5M	17.17	16.77	17.46
	11M	17.32	17.01	18.19
	12M	17.48	17.24	18.23

Size chart is a general guide. It may include sizes that are unavailable for this item.