Manufacturers often label the frame size of their models with designations like XS (extra Small), S (Small), M (Medium), L (Large), XL (extra Large), and XXL (extra extra Large). These sizes are based on clothing sizes, but they are not bound by any standards or norms. Each manufacturer has a different definition, and such designations are to be understood more as guidelines. Please check directly on the manufacturer's website or contact our staff. We're here to assist you via chat, phone, or at verkauf@liquid-life.de.