1. A system for forming customized, additively manufactured outerwear for a portion of a body of a user, the system comprising one or more physical computer processors configured by computer readable instructions to: facilitate, via a user interface presented to the user on a computing device associated with the user, obtaining one or more images of the portion of the body of the user; generate an electronic model of the portion of the body of the user based on the one or more images, the electronic model comprising a point cloud map of the portion of the body of the user, the point cloud map determined based on the one or more images of the portion of the body of the user; determine an outerwear design based on the electronic model; communicate the outerwear design to an additive manufacturing device; and facilitate forming the customized, additively manufactured outerwear based on the communicated design with the additive manufacturing device, wherein determining the outerwear design based on the electronic model comprises determining locations of one or more sensors in the outerwear design, wherein each of the one or more sensors is configured to generate output signals associated with at least one of force, pressure, or ambient light, and wherein determining the outerwear design based on the electronic model further comprises determining the placement of functional channels into the design, the functional channels providing fluidics and/or dynamic sizing of the outwear outerwear based on output signals generated by at least one of the one or more sensors.