Skin

Garry Turner, a British man, is capable of stretching his stomach skin an entire 6.25 inches, due to a rare medical condition he suffers from known as Ehlers-Danlos Syndrome. It’s a disorder related to the connective tissue, in which the collagen is defective. Stretching does not hurt him, however, his joints often cause him a lot of pain.
Courtesy https://theimperfective.com