Abstract: An adjustable-fit hat having a flatly-formed top with two separate rearwardly positioned spaced-apart reverse foldable rim portions each with intermittently detachable and securable mating mechanism inclusive of a common intermediate anchoring element mounted on an intermediate hat rim portion positioned within a gap between rearwardly positioned opposite ends of the discontinuous hat band, and the hat's flat-top crown being continuous fabric with rearward and opposite-sides fabric, and having a upwardly-extending forward side and front fabric, the upwardly-extending forward fabric being detachably anchored at each of two forward spaced-apart snaps on a forwardly-extending visor.

Abstract: An adjustable-fit flat-top hat having two separate rearwardly positioned spaced-apart reverse foldable rim portions each with intermittently detachable and securable mating mechanism inclusive of a common intermediate anchoring element as a part of the entire mating and securing mechanism, with the common anchoring element being mounted on an rearwardly positioned intermediate hat rim portion positioned within a gap between rearwardly positioned opposite ends of the discontinuous hat band, and spaced-apart parallel stitching securing together circumscribing edges of the hat's flat crown top and crown rim upper edge, typically utilizing opposing male hook and female loops elements as a part of the securable mating mechanism.

Abstract: A hardhat liner of two coincident woven tubes embodying a common knitted weave of synthetic fibers, one of the tubes being within the other each having a closed top and sewn together at opposite bottom and top ends thereof, both conforming to a crown of a wearer's head and the sewn-together open bottom being cut and shaped to include a semicircular upwardly-extending forward bottom-edge defining a forward upwardly-extending semicircular cut-out space and both sewn-together open bottom ends sewn-together with elastic thread and embodying a cut and shaped rearward portion having opposite-side portions and an intermediate back portion that are contiguous and congruent portions having a continuing common substantially horizontal bottom peripheral edge aligned and matched with opposite ends of the semicircular forward edge, the semicircular upwardly-extending forward bottom-edges being positioned to be laterally forward of a wearer's ears behind a wearer's eyes and upwardly along a wearer's brow-line when worn and