You have the ABS Vario Base Unit equipped with the dual-airbagsystem, so now you need a lightweight, streamlined attachable packfor your quickie alpine adventures, one like the ABS Vario 18 UltralightCover. With a capacity of 18 liters, two large front pockets,designated ski and snowboard or snowshoe straps, and detachablehelmet, mesh and loop carriers, it fits everything you need in asleek and compact space. Zip on and go.