▁particularly ▁true ▁for ▁throw back ▁uniform s , ▁such ▁as ▁those ▁worn ▁by ▁the ▁Cow bo ys ▁( white ), ▁Patri ots ▁( white ), ▁Ste el ers ▁( yellow ), ▁J ets / T it ans ▁( blue ), ▁and ▁Bu cc ane ers ▁( white ). ▁The ▁NFL ▁out la wed ▁the ▁use ▁of ▁alternate ▁hel m ets ▁beginning ▁in ▁the ▁ 2 0 1 3 ▁season . ▁This ▁has ▁had ▁impact ▁on ▁some ▁teams ▁wanting ▁to ▁wear ▁their ▁throw back ▁j er se ys ▁while ▁other ▁teams ▁are ▁not ▁affected ▁by ▁the ▁limitation . ▁Philadelphia ▁E ag les ▁owner ▁Jeff rey ▁L ur ie ▁has ▁been ▁trying ▁to ▁conv ince ▁the ▁league ▁to ▁change ▁its ▁policy ▁on ▁having ▁only ▁one ▁hel met ▁by ▁allowing ▁the ▁usage ▁of ▁two ▁hel m ets , ▁for ▁he ▁lik es ▁the ▁E ag les ▁to ▁have ▁their ▁k elly ▁green ▁hel m ets ▁on ▁if ▁the ▁team ▁we ars ▁its ▁k elly ▁green ▁j er se ys . ▁ ▁Out side ▁of ▁league - wide ▁prom ot ions , ▁only ▁two ▁teams ▁have ▁not ▁had ▁an ▁official ▁third ▁uniform ▁as ▁of ▁now : ▁the ▁Kansas ▁City ▁Chief s ▁and ▁Las ▁Veg as ▁Ra iders . ▁ ▁Color ▁R ush ▁ ▁For ▁the ▁ 2 0 1 5 ▁season , ▁the ▁NFL ▁deb uted ▁a ▁" Color ▁R ush " ▁j er sey ▁concept ▁for ▁select ▁Th urs day ▁games ▁( Th urs day ▁Night ▁Football ▁and ▁one ▁Thanks g iving ▁Day ▁game ) ▁in