▁following ▁season . ▁The ▁uniform s ▁were ▁worn ▁twice ▁by ▁each ▁team ▁except ▁for ▁Ott awa ▁who ▁wore ▁their s ▁three ▁times ▁and ▁W inn ip eg ▁who ▁wore ▁their s ▁once . ▁In ▁ 2 0 1 5 , ▁W inn ip eg ▁abandoned ▁the ▁uniform s ▁altogether , ▁as ▁did ▁the ▁BC ▁L ions , ▁despite ▁their ▁popular ity ▁in ▁BC . ▁Every ▁other ▁team ▁wore ▁their s ▁twice ▁during ▁ 2 0 1 5 ▁except ▁for ▁Hamilton , ▁who ▁wore ▁their s ▁once ▁on ▁Labour ▁Day . ▁ ▁With ▁the ▁league - wide ▁red es ign ▁of ▁uniform s ▁by ▁Ad idas ▁in ▁ 2 0 1 6 , ▁Cal g ary , ▁Ed mont on , ▁and ▁Montreal ▁each ▁retained ▁their ▁signature ▁series ▁uniform s ▁and ▁each ▁wore ▁them ▁twice ▁during ▁the ▁regular ▁season ▁( Cal g ary ▁also ▁wore ▁their s ▁in ▁the ▁West ▁Final ▁game ). ▁S ask atch ew an ▁also ▁wore ▁a ▁modified ▁version ▁of ▁their ▁retro - th emed ▁uniform s ▁in ▁two ▁games ▁that ▁year . ▁ ▁As ▁of ▁ 2 0 1 8 , ▁teams ▁are ▁permitted ▁to ▁wear ▁third ▁j er se ys ▁during ▁the ▁play offs , ▁but ▁not ▁for ▁the ▁Grey ▁Cup ▁game . ▁The ▁ 2 0 1 0 ▁S ask atch ew an ▁R ough rid ers ▁were ▁the ▁last ▁team ▁to ▁wear ▁alternate ▁uniform s ▁for ▁the ▁championship ▁game . ▁ ▁The ▁following ▁list ▁is ▁a ▁rec ount ▁of ▁all ▁known ▁alternate ▁uniform s ▁worn ▁by