Set on to explore the world carrying Arc'teryx® Aerios 18 Backpack. Made of nylon and polyarylate, liquid crystal polymer ripstop grid offers outstanding durability. The backpack features padded hipbelt and highly adjustable harness combine for a comfortable carry. Multiple internal and external pockets are secure and accessible. It has zip-top closure, top handle, and adjustable shoulder straps. Activity-specific designs. Functional packs streamlined for ease of use and lightweight. Imported. View Zappos.com Glossary of Terms Arc'teryx Aerios 18 Backpack