Fairtex Competition Muay Thai Shin Guards, SP5 - Black, Blue, Yellow, Red Size Height / Weight Small: Under 5'3" (Up to 135lbs.) Medium 5'3" - 5'10" or (136 - 160lbs.) Large 5'10" - 6'1" or (161 - 215lbs.) XLarge 6'1" - 6'4" or (over 216lbs.) #1 Muay Thai brand proven through quality and durability Shinguards protect your knee and foot while wrapping partially around the upper part of your calves Handmade in Thailand