View pack consists of a transparent blue tinted front sealed to a paper backing. The sides are secured by three rail seals to enhance peeling characteristics and eliminate the possibility of blowouts during autoclaving. The chevron seal has rounded corners for ease of opening and to reduce fiber/laminate tear. The transparent front is comprised of tough multiple ply tinted laminated polyester to polypropylene films. Medical grade white sterilization paper as specified by the British Standards Institute. Dual colored arrows are printed above the chevron indicating direction for correct peel of both pouches and reels. The pink arrows change to brown during steam or vapor sterilization and the blue to yellow/green when E.O. sterilized.