The next generation of pack innovation. We took the expandable design of our award-winning Alchemist and built this new pack with non-woven fabric. The CTF³ monofilament fiber and welded construction deliver best-in-class performance for strength, light weight, and weather resistance. Expandable from 40 to 55 liters. Delrin compression rails balance loads. Removable BFF framesheet serves as emergency bivy pad.