Materials:
* Main: 840D carbonate coated plain weave nylon - 100% Nylon
* Bottom: Dimension-polyant™ X-pac™ x51 plain weave - 80% Nylon, 20% Polyester
* Lining: 70D ripstop nylon SIL/PU - 100% Nylon

Specs:
* Torso: 16 - 22 in / 41- 56 cm
* Capacity: 3051 in³ / 50 L
* Approx. Weight (Regular): 3 lb 0.5 oz / 1375 g

Features:
* No-compromise materials selected specifically to hold up to repeated expedition use
* Unique center-zip opening allows unobstructed loading access and makes finding packed gear easier
* Internal compression system can also be used to compartmentalize gear making it easier to access frequently needed items while securing away other gear for later use
* Contoured, foam-padded shoulder straps offer a comfortable carry and remove when not needed
* Shoulder straps join to form center grab point and are removable
* Reinforced, oversized grab handles for easy handling or lash points