If the stalker uses a gas mask, he also usually eschews the two oxygen tanks and breathing mask for a backpack.
The appearance of the stalker suit has remained the same in all three games, the only difference being the design of the gas mask that was changed in Clear Sky. It is most popular among Loners, the suit has achieved status as a symbol for stalkers and for the S.T.A.L.K.E.R. It is reinforced with inserted kevlar plates and provides low levels of protection. It is an effective combination of a light military bulletproof vest and a jumpsuit made out of rubberized fabric.
