The Allt 20L is a four-season alpine pack built through a collaboration between Osprey and Houdini, merging Osprey's technical pack design with Houdini's circular material principles. The main body is constructed from 100% recycled 300D x 600D polyester with a PFAS-free DWR finish, while the front panel uses a lightweight 75D mechanical-stretch hardshell fabric made with 70% recycled content. A quick-drying AirScape backpanel and padded hipbelt keep the pack comfortable across varied terrain, while an A-frame ski carry, ice tool attachment, rope compression strap, and daisy chains for a helmet holder make it a capable companion from winter ski touring to summer hiking.
20L capacity for day-length alpine adventures
Main body: 100% recycled 300D x 600D polyester, PFAS-free DWR
Front panel: 70% recycled 75D mechanical-stretch hardshell, PFAS-free DWR
Reinforced A-frame ski carry and ice tool attachment
Multi-purpose compartment fits snow tools or hydration reservoir
Daisy chains compatible with helmet holder attachment
