The present paper is devoted to show and formalize logistics problems emerging on boarders between different logistics environments while crossing them by supply chain. The said problems consist of increasing logistics risk and transaction costs. It is shown that the solution of these problems constitutes a significant reserve for increasing the competitive advantage. The comparative-analytical approach is used to build a double-prism model of international logistics management. Crossborder supply chain integration is formalized using vector representation in a pair of n-dimensional spaces of logistic significant marketing variables. A prospective model of digital real-virtual cyberspace is presented as a hypothetical example of a fully digitalized logistics infrastructure. Didactic use of paper materials is explained.