I bought 2 of these belts 4 years ago after seeing the product on Shark Tank, and they are my favorite belts of all time.  But I just ordered a new belt for the brown one, and guess what?  The ridges for the buckle to grab are about an inch farther into the belt than my original!  So when I put it on, it's like I've gained 15 pounds.  I can barely get it into the first notch, whereas my original two, bought here on Amazon by the way, work great, and there is plenty of room for adjustment throughout the day, the whole point of the belt.  So I'd say beware of the new belts and sizing!  They must have changed manufacturers, and I'm sure I'm not the only one to experience this problem with the new belts.