For other sizes please convo me or start a custom order! This is a very unique hat. My own design on the master of Magnetism using my own pattern. You choose not only size but the colors, style one is classic red and purple, style two is the NEW colors Black and Silver. You choose size! This is a handmade hat (like all my items) and uses several colors. When ordering your hat you can either pick from the sizes listed or you chose option "CUSTOM." With this option you measure around the head (from middle of forehead around the head, in inches) of the person for whom you are ordering and put the measurement in the comments. NON CUSTOM SIZES ARE NOT GUARANTEED TO FIT. Approximate sizes in Inches: (This is how big around the outside of the hat will be) NB----12inches 0-3----13 inches 3-6----15 inches 6-9----16 inches 9-12---17 inches 12-24---18 inches 2-4----19 inches 4-6----19.5 inches 6-8----20 inches 8-10---20.5 inches teen is 21in adult is 22in xlarge is 24in Shipping includes: standard usps mail with tracking. WARNING: CHOKING HAZARD - Small parts, DO NOT leave child unattended with items. I make every effort to make my items secure as possible but i cannot guarantee that all small parts will stay attached due to excessive handling.