A Ram ProMaster has no wall between the cab and the living area, which means the cab's glass — three big uninsulated panels — is thermally connected to wherever you are sleeping. This partition closes that opening off, so you are heating or cooling the space you actually occupy instead of the whole van, and headlights sweeping the windshield stop lighting up the bed. It hangs from the headliner shelf, so there is no frame to build and nothing to bolt to the body. Heavy-duty fabric blocks light and slows heat transfer through the cab opening; drop it at night for privacy and a warmer bed, push it aside during the day. Because it is soft goods rather than a rigid bulkhead, it stows flat and does not permanently eat cab access. Fits Ram ProMaster van — cab-to-cargo opening Material Heavy-duty fabric Mounting Attaches to the headliner shelf — no drilling Colors 2 options Origin Hand-sewn in North Salt Lake, Utah Warranty Lifetime workmanship What to know before you buy This is a fabric partition, not an insulated rigid bulkhead. It cuts light and slows heat transfer through the cab opening; it will not seal the opening airtight.