Due to the highly stretchable fabric, Dear Denier's activewear sizing is quite flexible. If you are in between sizes, we suggest you choose the larger size. If you are slightly outside sizes, select the one closest to your measurements. Please keep in mind that 3D knitted garments feel a bit firm initially but they will get stretchier with time. Should you require assistance, feel free to contact us at firstname.lastname@example.org with your measurements, and we will help you out.