Our size guide is pretty accurate, but specific styles may run smaller or larger than normal, and this is indicated in the individual product pages under the 'Fit and Fabric' tab.
Furthermore, the measurements in our size guide are estimates and we cannot guarantee they'll fit perfect. If you want better sizing suggestions, please don't hesitate to contact us at aloha@blackboughswim.com with your measurements and/or a picture so we can give you more accurate sizing recommendations.