Detachable collar

She cut off the collars and attached lengths of fabric tape so that they could be tied around the neck of the collarless shirt.[1] It was later that the benefit of being able to starch the collars became apparent, and for a short time, various other parts of the shirt, such as the front and cuffs, were also made detachable and treated to rigid stiffness.As more emphasis started to be placed on comfort in clothing this practice declined, and the stiff collar is the last surviving use of such heavily starched cotton in daywear.The shirt has a tunic collar, a short upright band of fabric with a hole at the back and one on each side at the front.After soaking in a concentrated warm starch solution, it is left until nearly dry, then ironed until hard.
A starched-stiff detachable wing collar from Luke Eyres.
Man wearing detachable collar, 1910 USA
A pair of collar studs; the longer left one is the front stud
collarTroy, New Yorkstarchwhite tieblack tieturndown collarbarristerswing collarclerical collarEton Collegemorning dressEdwardiansironedCollar (clothing)ArmscyeCollar staysFacingLiningPlacketPocketReversRuffleShoulder padSleeveWaistbandTextilesCottonArtificial leatherElasticPolyesterSpandexAnimal hidesleatherKangarooOstrichStingrayFastenersBack closureBelt hookBuckleButtonButtonholeHook-and-eyeHook-and-loopVelcroZipperNecklineBustlineWaistlineHemline