Kersey is a kind of coarse woollen cloth that was an important component of the textile trade in Medieval England.
It was being woven as early as 1262 in Andover, Hampshire, where regulations prohibited the inclusion of Spanish wool in kerseys.
English kerseys were widely exported to central Europe[2] and other places: a surviving business letter[3] from the end of the 16th century recommends trading kerseys for good wine on the Canary Islands.
Kersey was a warp-backed, twill-weave cloth woven on a four-treadle loom.
As a rule, half the relatively small, numerous and closely set warp ends [threads] were struck with a big kersey weft in a two-and-two, unbalanced and highly prominent twill.