Features of the Thule Men's Stir 28L Quickly access a phone and other small Items in the stretch pocket on shoulder strap Easily attach gear to the outside of the pack with removable compression straps Streamline your carry around town by completely removing sternum strap and hipbelt Be seen in low light conditions thanks to light loop attachment point and reflective material Easily store and access small Items in the external lid pocket Stay cool with breathable back panel and shoulder straps Stay hydrated with the dedicated hydration sleeve with drink tube exit port and two side water bottle pockets (hydration reservoir sold separately) Easily secure trekking poles or ice axes on loops that stow away when not in use