The lightweight, waterproof materials and bomb-proof construction of the Gearjammer™ create a light yet durable pack with all the features needed to securely store gear from your bicycle seat post during day rides or bikepacking trips.
Gearjammer™ Seat Bag - WACK PACK™
Gearjammer™ Seat Bag - WACK PACK™
Gearjammer™ Seat Bag - WACK PACK™

Gearjammer™ Seat Bag - WACK PACK™

Regular price $135.00


Wack is back!  Wack Packs™ are constructed out of random colored fabric, webbing, and hook & loop.  Guaranteed to be one of a kind, these bags are tastefully mixed and sewn from scraps and miss-matched cuts.  Although scrappy, all Wack Pack's are made from first quality fabric and materials.  


  • Roll-Top design allows for variable volume packing
  • Exterior compression straps (x2 sides, x1 top/bottom) for unparalleled compression and load stablization
  • HDPE frame sheet retains the shape of the pack and distributes the load
  • Bomb-Proof 2" die-cut and welded hook & loop seat post attachment strap
  • Gear Loops on underside of pack offer increased carrying capacity
  • Superfabric® Grip™ provides a durable and highly stable contact point along the seat post
  • Nexus® cam-locking buckles secure the bag to your seat rails
  • High density foam stiffened side panel keeps the load tucked away from your legs
  • 1050 Ballistic Nylon seat rail attachment point and wear patch
  • X-Pac® VX21/VX42 fabrics
  • Mil-Spec webbing/binding
  • WEIGHT Medium: 12.2 oz.  Large: 12.6 oz.
  • CAPACITY Medium: 4-10 liters Large 6-12 liters
  • MADE IN THE U.S.A. of domestic and imported materials 
  • Wack Packs will vary in color and pattern from bag to bag. If a particular color or style of pattern is preferred or unfavored please let us know in the "notes to seller" at checkout and we will try to accommodate your request.
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