Helly Hansen Capacitor Mens Red BackpackOur largest mountain backpack with a multitude of features. Put to the test, this 65L capacity bag stands up to the toughest conditions while protecting your gear. Designed for your multi day mountain expeditions, the 65L Capacitor has a floating top flap for extra space when storing larger gear. This backpack features an adjustable back panel to customize the length of the chest for comfort and efficient carrying capacity, a unique whistle integrated