A storage bag includes first and second zipper profiles provided adjacent to an opening to the interior of the bag. The first and second zipper profiles are provided with opposing closure elements that respectively interlock with each other. The storage bag further includes first and second isolation sections between the first and second zipper profiles and a slider to occlude and to de-occlude the closure elements of the first and second zipper profiles. The slider includes a first zipper profile opening member and a support member with a second zipper profile opening member that is (i) disposed between the first and second isolation sections, and (ii) separate and distinct from the first zipper profile opening member.