• UTMB-capable with expandable cargo space
  • Bladder Control System keeps water and gear close to the body for maximum no-bounce comfort
  • Secret center back pocket holds ice pack for added body cooling
  • Strategically-placed Shock Cords with one-pull tension lock offer customizable trekking pole configurations
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All you need, in the most comfortable vest on the market. A sculpted fit and highly-breathable, moisture-wicking fabrication give you all-day, chafe-free comfort and performance. Specialized, adjustable compartmentalization makes this the perfect multiday event partner.

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Learn more about our Vapor Series here.

  • View sizing guide
  • Hand-wash only: Nathan Sport-Wash recommended
  • To clean bladder: Remove and rinse tubing and bite valve. Turn bladder inside out, rinse, and dry standing up. When ready to reassemble, do everything you did before, except backwards.
  • Click here for a video tutorial on bladder cleaning
  • Weight: 23oz
  • Storage Capacity: 8.19 L / 500 cu in without bladder, 6.55 L / 400 cu in with bladder
  • Bladder Volume: 2 Liters