Paul R(2011-01-07) If your waist size is more than 40 inches, be aware that the size XL contoured belt will not fit. It is supposed to fit waist size 39 to 47 inches, but the belt will not fit a waist size larger than 40 inches. The problem is that the Velcro gripping part of the strap is well short of reaching the Velcro part on the belt. A similar size problem was reported for sizing of the 4%u201D nylon belt. The product itself is very good.