How to Find Right Size: 1 USE a soft tape measure. 2.PLACE it around your head, positioned mid-forehead and just above the ears. 3.MEASURE your head in centimetres or inches. (21-21.5 inch - X-Small ) (21.6-22 inch - Small) (22.1-22.5 inch - Medium) (22.6-23 inch - Large ) (23.1-23.5 inch - X-Large.). Care Instructions: Dry Clean Only Fit Type: Stretch Cotton Lining Inside Durable, Warm and Cozy Genuine Quality in Best Price Traditional Diplomat Style Handmade by the Finest Rampuri Hatters Woolen (Made from Qarakul/Karakul Sheep) NORMAL HAND WASH ONLY, DRY IN SHADE Sweatband with felt pad that prevents hat from deforming Product colour may slightly vary due to photographic lighting sources or your monitor settings X-Small (5-Number), Small (6-Number), Medium (7-Number), Large (8-Number) X-Large (9-Number)