Vaude Challenger 45+10L Pack Removable lid - variable lid height - information panel for alpine emergency situations under the lid - zip pocket in the lid Additional zip lid pocket inside - rope holder under the lid - access to the main compartment also via zip - map compartment Crampon attachment on the front - attachment point for ice tools - side compression straps - side ski attachment Removable hip belt - suspension system with F.L.A.S.H. NT adjustment - sternum strap with whistle - opening for hydration system