Duet is a peelable chevron header pouch said to reduce costs while offering improved aseptic presentation of medical products and making access easier. Developed by rollprint, addison, il, the hybrid design combines elements from both header bags and chevron pouches. The pouch is sent to the sterile medical packager with the chevron or bottom access seals in place. The device or kit is loaded from the top end where the tyvek and film are to be heatsealed.