The skin over his eyes sagged down onto his eyelids.

The skin on his thin, leathery face sagged with the weight of years.

His skin sagged as if it had lost nearly all elasticity.

His skin appeared dull and sagged, as though he hadn't slept at all.

There were pouches under the eyes, the skin sagged from the cheekbones.

Gray, mottled skin sagged into folds about the rider's face.

Wrinkles and laugh lines grew, and the skin under the eyes sagged.

Bleary-eyed, gone to fat in places, and even so, the skin sags on his neck.

The general had lost weight, and the skin of his face was sagging now, adding years to his features.

His skin is already sagging, and he has no muscle definition.