Breaching access structure 10S provides easy access to sealed interior 10I containing contents 10C. Access region 12A proximate edge 12E of package 10, provides entrance into the interior and access to the contents. Band seal 14 formed by the upper lamina 14U and lower lamina 14L extends along the access region, enclosing breaching bubble 16. The band seal has inner seal portion 14I between the bubble and the interior, and outer seal portion 14O between the bubble and edge 12E of the package. The bubble is expandable to open the package in response to bursting detonator 18. The detonator is burst by external pressure applied by a user. Opposed pair of peel flaps, upper flap 16U and lower flap 16L, are formed by the opposed laminae of the outer seal along the edge breach as the bubble breaches. These small initial flaps are grasped by the user and manually peeled apart to initiate opening the band seal.