Dana Gleason Interview :: The Invention of the 3Zip (Part 2)
Because the pack is made of three distinct panels, it can flex and expand more naturally than a single-panel pack, often allowing you to over-stuff it more effectively. ENJOY 3zip
The (often stylized as the 3-Zip or Tri-Zip) is a signature pack design pioneered by Dana Gleason of Mystery Ranch . Originally popularized through military and firefighting gear, this design has become a cult favorite in the backpacking and everyday carry (EDC) communities for its unique "Y-shaped" zipper configuration. 🎒 The Core Design Concept The 3-Zip system consists of three separate zippers: Dana Gleason Interview :: The Invention of the