At least some aspects of the present disclosure feature a combination, comprising: a garment, a configurable convective device, and an attachment device configured to attach the configurable convective device to the garment. The configurable convective device comprises a pneumatic structure having a first portion, a second portion, and an inflatable channel connecting the first portion and the second portion and at least one opening into the pneumatic structure. In some cases, the relative positions of the first portion and the second portion of the pneumatic structure can be rearranged.
