Esteem Synergy Durahesive Moldable Convex Skin Barrier with Landing Zone Flange, with tape collar. White Collar. Esteem synergy is a two-piece ostomy system with an innovative resealable adhesive coupling technology that connects the pouch to the skin barrier. It provides the low-profile of a one-piece system with versatility of a two-piece system. Small, 13-22mm (1/2″- 7/8″) stoma opening, 4″ x 4″ overall dimension. Packaging: 10/Box.