Fjallraven - Kaipak 58 Backpack - Green The Fjallraven Kaipak 58 is a versatile trekking backpack designed for multi-day excursions. It features a fixed carrying system with a supportive hip belt and ergonomic shoulder straps. The pack is constructed from G-1000 HeavyDuty Eco, a blend of recycled polyester and organic cotton, reinforced with high-density nylon at the base and sides. The design includes a large top-loading main compartment with a spindrift collar, a height-adjustable lid with two zippered pockets, and side compression straps. Additional features include integrated attachment points for trekking poles or ice axes, side stretch pockets, and a dedicated hydration system sleeve. The pack includes a rain cover.