Doesn't seem so Tried breathing and sucking. If I got in them I wouldn't be able to eat or drink anything.
I've was using one for the past two years, even on wasitbands that fitted me - they all dug into where they cut me open. I even bought some chavvy grey tracky bottoms .
Just get some of those pale blue slacks with the elasticated waist, usually favoured by the wolf fleece brigade.