On the Shelf, particularly near the old industrial zones where remediation has been ongoing since 2140 and is nowhere near finished, a coat that offers some protection against particulate and chemical exposure is not a luxury — it is basic survival equipment. The Noxfield ChemShell is a full-length overcoat made from a laminated polyfilm material that resists low-grade chemical splash, acid rain, and industrial particulate. It is not a true hazmat suit; it will not protect you from serious exposure. But for daily life near the toxic buffer zones, it provides meaningful mitigation. The coat is stiff, crinkles when you move, and comes in a yellow-gray color that fades to a dingy beige within a season of use. The neck seals with a hook-and-bar closure that pulls tight against vapor. Shelf residents resell and repair these constantly — patches of different ChemShell generations make some coats look like textile archaeology.