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Snapback refers to the size-selectable 'poppers' at the rear of a hat, which make a snapping sound when you open and close them to adjust the fitting size. Other cap fitting types are 'fitted' (which come in fixed sizes such as 5 1/4 inch), FlexiFit (slightly stretchy, one size fits all type) or strapback (with a catch mechanism allowing you to fine-tune the fitting). Flat peak refers to caps that are sold with a flat peak as opposed to a curved, formed peak. So it is possible to have a flat peak or a curved peak with any of these fitting types.
squashing
The Flat Hat was created in 1911.
Flat Hat Club was created in 1750.
A pork pie hat has a circular brim with a flat top. The top of the hat, while flat, has a distinctive crown shape.
Brim ,visor or peak.
Guyot
Flat hat.
People with flat faces look better without a hat, so flat faces people cannot wear hats.
Flat Peak hats is a Euro name for Snap backs invented in 1954 for American Bass Ball teams
Cyme
flat hat