SW-Motech SysBag WP M with left adapter plateSysBag WP M with adapter plate, left The SysBag M WP is a robust soft luggage solution with an adventure look. It is mounted either on the SLC carrier or by looping it on the tail. Similar to the waterproof tank bags, the SysBag M WP is made from a TPU base and EVA components. Both materials are thermally welded and joined together to form a compact unit, making the bag completely waterproof. The SysBag WP M features a roll top closure and an