The Vandal VX is a highly versatile, utility-focused backpack designed for everything from daily commutes and travel to grocery runs and gear-intensive missions. Built from a combination of Dimension Polyant X-Pac® fabrics and a custom-engineered Nylon TPU, it holds its shape whether fully packed or empty.Its standout feature is a quick-expanding main compartment that grows from 1,800 to 4,000 cubic inches (29L to 65L), offering massive carry capacity on demand. A carbon fiber-reinforced internal frame and breathable shoulder harness help distribute weight evenly for all-day comfort.Organization is built in with six distinct storage zones: two large and two small external pockets, a rear roll-top stuff compartment, and the expandable central section. The pack also includes a Fidlock® magnetic closure, weather-resistant construction, YKK Aquaguard zippers, and dual Arkiv® rails on the shoulder straps for modular add-ons. Specification Expandable from 29L to 65L Six Compartments of various size Roll-Top or Flap-Down closure Internal Frame Sheet Dimension Polyant VX Fabrics YKK Aquaguard Zippers Arkiv Rails on shoulder harness Fidlock Magnetic Flap Closure Optional Waist Belt - Sold Separately Made in the USA External Dimensions : 15" x 21" x 6" Internal Volume (compact) : 1,800 cu.in. (29 L) Internal Volume (expanded) : 4,000 cu.in. (64 L) Weight (Empty): 4.2lbs (1.9Kg) Body Fabric(Black): Dimension VX21 RS Body Fabric(Olive, Coyote): Dimension VX21 Liner Fabric: Dimension VX07 RS