Simple and hardwearing trekking backpack in G-1000 HeavyDuty Eco S. The carrying system is substantial for its size; with fixed back length and ergonomically shaped hip belt and shoulder straps. The 38 L and 58 L models have attachment points for both ice axes and trekking poles and are compatible with hydration systems. The 28 L version is light and convenient for all types of daytrips.