Methods and systems for a protective sleeve for an electronic device according to various aspects of the present technology may function as a substantially impermeable barrier between moisture and/or air and the electronic device. Various embodiments of the protective sleeve may comprise a front panel coupled to a back panel, forming an internal volume that may be sealed toward a bottom open end by an expandable sheet member and a fastener toward a top open end. The expandable sheet member may fold inwardly towards a mid-portion of the internal volume to form a ridge flanked by two inwardly projecting surfaces. Expansion of the expandable sheet member may reduce a degree of inward projection of the two inwardly projecting surfaces above horizontal and may modify the shape of the internal volume to effect standing the protective sleeve upright on a surface.