Introduced in 1994 by Hyakusoku and Gao et al., the “super-thin flap” is a distinctively thin flap primarily thinned to the layer where the subdermal vascular network (subdermal plexus) can be seen through minimal fat layer (primary defatting). The properties of “super-thin flaps” have been defined as (1) being thicker than skin grafts, (2) thinner than conventional free flaps, and (3) composed of vascularized skin with a minimal thickness of adipose tissue that preserves the subdermal vascular plexus. Moreover, Hyakusoku et al. developed various types of long and large super-thin flaps. These flaps can be harvested mainly on the back and chest by selecting flaps with attached perforators (perforator supercharging).