Abstract: A method of making a resealable package is provided. The method comprises providing a closure mechanism, the closure mechanism comprising first and second closure profiles, the first and second closure profiles constructed and arranged to selectively engage, and wherein the first and second closure profiles are engaged. The method further comprises providing a pair of panels comprising a flexible polymeric material, inserting a wedge between the closure profiles, disengaging the closure profiles; and attaching the closure mechanism to the pair of side panels. Various embodiments of opening devices are also presented.

Abstract: A zipper closure having a first and second releasably interlocking closure profiles where a first sealing flange extends from the first closure profile, and a second sealing flange extends from the second closure profile. Two rectangular-shaped protrusions are on each of an exterior and interior side of the first sealing flange. A rectangular-shaped protrusion is on each of an exterior and interior side of the second sealing flange. The rectangular-shaped protrusions on each interior side of first and second sealing flange are constructed and arranged to mate with each other. A flexible, reclosable package and methods of manufacturing are also disclosed.