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UltrAspire Alpha 5.0 Race Vest


The award-winning Alpha series is the pinnacle of design, functionality, and comfort. Building on the ErgoFit design and expanding on successes of the fourth iteration, the Alpha 5.0 focuses on past design strengths while introducing new functional changes. This 6-liter race vest has 9 pockets accessible on the go. New cord locks on the Z-pole attachment allow for easier access. Updated magnet positioning on the passage pocket provides more capacity for larger items. The passage pocket has been updated to a nylon polyurethane coated fabric which keeps its contents dry. Updates to the side zipper pockets allow for easier access. In addition, another layer has been introduced which adds a quick stash pocket underneath the zippered pockets. The front harness bottle pockets are now taller allowing for a wider variety of bottle options. The pocket mesh has also been updated to a powernet mesh which gives more stretch and added durability. The overall body mesh has been updated to the UltrAcool Light Mesh for a more breathable on-the-body feel. Available in three sizes.


  • Rapid access pockets
  • UltrAcool Light Mesh
  • Large zipper pulls
  • Dual sided removable insulated reservoir compartment
  • Extra soft no chafe binding
  • Secure drawstring pocket
  • Large & flat front pockets
  • Easy access passage pocket
  • Double layered 30D fabric reinforcement at the stress points
  • Trekking pole attachments


  • Weight: 9.6oz (272g)
  • Volume: 6L
  • Technologies: ErgoFit, UltrAcool System, Max02™ Sternum
  • Chest size: 31"- 36" (S), 34" - 39" (M), 37" - 42" (L)