Fairtex Muay Thai Boxing Shorts BS0612 Spider, Size M Made in Thailand of Satin Material. FREE SHIPPING UPGRADE. Boxing shorts ship expedited with standard shipping cost. Transit time is generally 2-6 business days. Service center for return or exchange is in the U.S. Size S: Length:16" Waist: 26"-28" Recommended weight: 90 - 112 lbs, Size M: Length:17" Waist: 29"-31" Recommended weight: 112 - 132 lbs Size L: Length:18" Waist: 32"-34" Recommended weight: 132 - 165 lbs, Size XL: Length:19" Waist: 35"-37" Recommended weight: 165 lbs up