The new frame bags are made from 600D nylon and Hypalon and the seams are sealed with High Frequency. This nylon is completely waterproof and has an external PU (polyurethane) treatment that repels water and allows the bag to dry quickly on contact with air. The bag has a TPU (thermoplastic polyurethane) film which, together with the sealed seams, makes the bag completely waterproof. The zips are waterproof (YKK). The interior is reinforced with a padded chassis as a structure that gives the bag stability and protects the load from possible impacts. There are two side pockets (one on each side of the bag) with different compartments (including one with a waterproof zip). Both compartments are lined with yellow 210D ripstop nylon with TPU film. The frame bags are offered in two different configurations to fit most frames.