Menstrual Cup Sizing

Having trouble deciding which menstrual cup size is right for you? We're here to help. Cup size is less determined by how heavy your flow is, and more by the shape of your body and your experience with cups. Here are our recommendations:

XSmall Cup: new menstruators, petite build, light flow, low cervix Small Cup: first time cup users, have not given birth, light to heavy flow Large Cup: experienced cup users, have given birth, heavy to very heavy flow

Still not sure what size to get? We recommend starting with a Small. If you want to chat with a Viv team member, send a message to We're happy to help answer your sizing questions!