This soft-sided collapsible crate was given to us when we adopted one of our dogs from his previous owner who couldn't keep up with him as a pup. We never used it, and it's in new condition. There is an interior rigid tubular frame work, and the sides are fairly heavy duty fabric with large zippered access panels at the top and two sides, a pocket for storage on end, handles for lifting, and a convenient zippered carrying bag. It's very light and easy to setup, and could still accommodate the dog as an adult (a slim athletic 50 pound dog) for a cozy resting/nesting/cave spot. It would NOT be suitable, at all, as a means to restrain an active dog who didn't want to be in it.
Feel free to ask questions or make an offer. Similar soft crates sell between $50-$70 new, based upon a quick glance on Chewy.