When you're hiking up to hit the cornice with your twin- tips carrying them on your back is much easier that over your shoulder. Strap them onto the Dakine Tactic Backpack with a retractable ski carry to lighten the load. Equipped with an insulated hydration sleeve so you water won't freeze as you gain elevation the Tactics also has specific pockets for your shovel and snow tools and easy access quick draw loops for an ice axe.