The Stone Glacier Sky 5900 Pack combines function and versatility together for the ultimate hunting pack for a day or extended trips. Made from Codura and Xpac material, the Stone Glacier Sky 5900 is incredibly durable for long-lasting use, while the Xcurve frame allows for a load weight of over 150 pounds. With the variety of options, the Stone Glacier Sky 5900 Pack can go from 4,300 cubic inch bivy mode to 5,900 cubic inches with the addition of the Sky Lid to an additional 2,500 cubic inches with the load shelf. Additional features like the waist belt, padded shoulder straps, and compression straps all help elevate the comfort, stability, and overall performance of this pack.