Jack Wolfskin Moab Jam Rucksack, Chili, 30 L style:1.shell: 100% polyamide; 2.shell: 100% polyamide; lining: 100% polyester Imported Big sports pack with flexible, body-hugging suspension system Large, dual-chamber backpack for physically demanding trips Main compartment and base compartment, 5 pockets Stowaway helmet attachment, attachment for LED light, reflectors, rain cover Equipped for a hydration system