Thank you for shopping with us. Please use the chart provided as a general guide to determine your size. All sizing is U.S. unless otherwise indicated. Please keep in mind that sizing may vary between manufactures. We try to make sizing recommendations in each item description if it varies from the chart, for example, runs small or runs large, etc. Please email HiThere@Mypheme.com or Live Chat us with any specific questions on fit, we are happy to help!