These jumpsuits, coveralls, whatever you want to call them are the genuine artical imported from the US from the main supplier to US correctional institutions.  Medium waist size ranges from 31 to 35 inches (79 to 89 cms) and chest size is 46 inches (117 cms).  The inside leg measurement is 30 inches (76 cms) and the shoulder to waist dimension is 20 inches or 51 cms.

Note: You are just buying the suit, not the additional equipment.