Abstract: A releasable attachment construction for automobiles, for releasably securing sheet material of solid or convertible tops to the forward top portion of an automobile body. The attachment construction comprises an elongate anchorage strip having a longitudinal groove, and elongate fastener strips which are interlockingly receivable in the groove and have abutment surfaces adapted to engage one wall of the groove. The fastener strips have surfaces to which the sheet material of the various tops can be attached, as by stitching, screws or other suitable fastening means. The anchorage strip has a projection means adjacent a groove wall, adapted to engage any of the fastener strips in a manner to normally hold them captive when they experience transverse force from the sheet material of the tops.