Rocky,
Good morning.
I corrected my post, I should have wrote 'leggings' not waders I consider leggings waders. The ones I saw weighed less than 10 ounces and packed down to the size of a tennis ball. They didn't cover your mid section and they tied onto belt loops or belt.
Gamewades are 25oz.
The guy making them was getting bad reviews from people who were using them as 'wear all day waders'. So maybe not around anymore.