Excess saggy skin and folds

Hi everyone,

Calling any vet experts out there. What do you call the phenomenon in this photo?

🔹It’s a kind of skin laxity that causes wrinkling and folds everywhere (lower back, forehead, neck, belly...). A friend’s dog has this, but I have no idea what it could be.

The dog isn't bothered by it, but it certainly doesn't look great.

It just feels like sagging skin. I can't feel any fat when I touch it.

Best wishes.