Traditional sizes (such as M and L) are not specified in the source but dimensions are given in centimeters. It is recommended to contact the supplier via Alibaba to inquire about available sizes and ensure you choose the right size for your needs. Recommendations: Check local availability: It may be helpful to contact local pharmacies or medical supply stores in your area to inquire about the availability of this or similar products. Purchase online: If the product is not available locally you may consider purchasing online from suppliers. Be sure to review the shipping and warranty policies. Consult a healthcare professional: Before using any waist support belt it is best to consult a healthcare professional to ensure it is suitable for your health condition.