Enjoy 3zip Page

Run vertically along the edges of the front panel.

Are you interested in or a durability comparison ?

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: ENJOY 3zip

All three zippers meet at a single point at the top center of the pack. 🔥 Key Benefits

Dana Gleason Interview :: The Invention of the 3Zip (Part 2) Run vertically along the edges of the front panel

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.

Splits the front panel vertically down the middle. Splits the front panel vertically down the middle

The geometry of the Y-shape helps distribute the weight load across the zippers more evenly, reducing the likelihood of a single point of failure under heavy loads. 🛡️ Popular Models Featuring 3-Zip Primary Use Notable Feature ASAP Military/Tactical Lightweight, radio-ready, and ultra-durable. Urban Assault Daily Commute/EDC Sleek exterior with internal laptop sleeves. 3-Day Assault (3DAP) Tactical/Hiking The "gold standard" for durability and modularity. Coulee Series Focuses on comfort with exterior stretch pockets. 🛠️ Design Evolution