NWT Breathable -Increases core temp during exercise, enhancing thermogenic activity to make you sweat/burn more fat in stomach area. -Curve cutting on both sides of waist is on basis of a natural waist line, not like the straight line cutting other compression belts -Adjustable double Velcro closure to make sure the slimmer cincher fastened tightly around abs. -4 steel bones inside strong back support & improve posture XL=47.24in length / 9.84in width (SOLD OUT) L=43.07in long / 9.84 in width