JACK WOLFSKIN Highland Trail 48 Hiking Backpack style:1.shell: 100% polyamide; 2.shell: 100% polyester; lining: 100% polyester Imported Large, Slim hiking pack with good ventilation for multi-day trips Dual-chamber hiking pack Dual access main compartment and base compartment, 8 pockets Lashing options for trekking poles and ice tools, reflectors, rain cover Equipped for a hydration system