Why do fingers acquire "pruny" when they've be surrounded by marine too long?

Why do fingers acquire "pruny" when they've be surrounded by marine too long?
The outermost layer of the skin swells when it absorb water. It is tightly attached to the skin underneath, so it compensates for the increased nouns by wrinkling. While a person is within the pool or a bathtub for a long time, the comatose keratin cells hold water. This digestion causes the surface nouns of the skin to swell, but the outer layer is tightly attached to the living tissue. So, to compensate for the increased surface nouns, our skin wrinkles.
So why does this happen to hand and feet and not to other parts of the body? Because the hand and feet own the thickest layer of unconscious keratin cells. Our hand and feet are subjected to a great deal of wear and tear.
the skin on your fingers have absorbed profusely of water and the skin have expanded to accomedate this. More surface area on the body thus no wrinkles.