NWT Cotopaxi Allpa X 4L Hip Pack- River Allpa X Hip Pack is the latest and smallest addition to our travel collection. This fanny pack is the perfect in-flight companion and it fits right in your Allpa Travel Pack's top pocket. Butterfly-style opening for easy access Side release buckles for compression compression Main compartment two-way zipper Wings can be stowed in the back panel when traveling for easier packing Rounded corners and darts give the front pocket more volume for packing Fits perfectly inside top pocket of Allpa 35L and 42L