Jack Wolfskin Moab Jam 18 Basic Day Pack style:1.shell: 100% polyamide; 2.shell: 100% polyamide; lining: 100% polyester Imported Small sports pack with flexible, body-hugging suspension system Small, single chamber day pack for energetic outdoor sports Main compartment, 5 pockets Stowaway helmet attachment, attachment for LED light, reflectors, rain cover Equipped for a hydration system