Its 18L Volume Provides Room For The Key Kit You Need For A Day Outside And It’S Loaded With Features Designed For Adventure. Walking Pole Holders, Pockets, An External Bungee, And A Laptop Sleeve Give You All The Options. The Pack Works With A Hydration Bladder And The Adjustable, Vented Back System Means You’Ll Stay Comfortable Carrying Whatever You Need, Wherever You Go.