First I want to point out that this has a wide thong style back, around 2 inches on the back.

That being said, for better or worse this gaff has no give what-so-ever.  I have been wearing gaffs for a while now and this one gave me trouble getting over my hips, and I do not have particularly big hips.  I made sure to get the right size based off of their website, my waist measurement fit between what they suggested, and it still feels small, very, very tight.  That could be the point I guess.

Overall great for flatting your bulge, not my first pick for an all day comfort.  Do not go down a size, maybe go up...

Still I will probably get another one or two for those time that I want no visible bulge without taping or glue.