What material is this absolutely gorgeous duffel bag?

Hey, cowboys. I smoked reds for about 6 years (not including all the times I was SUCKING on other BUTTS). However, the lovely aesthetic of Marlboro Reds™️ is undeniable. I’ve had this duffel for a few years and it was improperly stored during Covid. Can anybody tell me what material it is? I’m guessing polyester, but maybe it’s fancy canvas? I wanna kill the mildew/ musty smell without hurting the material unnecessarily. Thanks babes.