This "belly-way belt" does not fit properly and you start to sweat immediately including (will be up to the inner material). The "belly-way effect" I have searched in vain here. According to the description of the belt for a waist circumference 56-127 cm should be. My book is now pretty much the extent of these measures and means I could easily move him to the lowest level, without a visible success to be seen. "Almost invisible to wear under clothes" This too is nonsense. So considering carefully whether you really want to spend any money.