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The updated UltrAspire lightens up with sweat proof webbing and more breathable mesh, while still carrying dual 20 oz ergonomic bottles with surprising comfort thanks to a unique articulated design allowing the bottle holsters to move independently. A simple belt hook system replaces a traditional snap buckle for enhanced comfort. Three open mesh pouches and a side zipper pocket carry nutrition, keys, phone and small essentials; a rear shock cord can stash a shell jacket, warmers or gloves.


  • UltraRed/Grey (UA071RE)


  • Includes 2 Human20 oz ergonomic bottles
  • Angled, molded bottle holsters for easy grab and return
  • Articulated design lets bottles move independently from each other; moves with your body to increase comfort
  • Sweat proof webbing prevents pack from absorbing moisture and getting heavier as you run
  • Larger holes in mesh enhance breathability to keep you cool while also decreasing pack weight
  • Adjustable belt with speed hook design; no irritating or uncomfortable snap buckles
  • Side zipper pocket and open mesh pouch for gels, keys or other essentials
  • Mesh sleeves around bottle holsters can store gels or other small items
  • Rear shock cord stores shell jacket, warmers or gloves
  • Lightweight zippers with pull tabs; grab easily even when wearing gloves or with cold fingers
  • Weight: 7.23 oz (205 g) without bottles

Bottle Details

  • Human20 oz, round ergonomic angled bottles
  • Leak-proof, push/pull nozzle
  • Fills easily with wide mouth opening
  • Crystalline™ plasma silicon oxide coating for better taste, easier cleaning and durability; FDA approved
  • Polarity system™ magnet at bottom
  • Low Density Polyethylene (LDPE) construction
  • BPA free

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