The cuffs on the bottom of C17 breeches with ties through them exist on in the mind of reenactors
Some breeches did have small bands at the bottom of them with closures such as buttons or hooks and eyes. The vast majority of breeches were loose around the knee, aids movement if nothing else.
Garters exist to hold your hose and not to close breeches, afterall most people don't close the bottom of their trousers do they..
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