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The updated UltrAspire Omega is made for distance with ample rear pack volume for apparel and a 70 oz (2L) reservoir for hydration, yet is shockingly light with sweat proof webbing and more breathable mesh. A unique rear tension system coupled with dual compression straps secure the ride and a contoured vest shape evenly distributes weight to eliminate pressure points. Several front pockets stash nutrition and small essentials with a unique magnetic pocket for electrolyte capsules.


  • Pitch Black/Grey (BK)

Vest Details

  • 70 oz (2L) Hydrapak® bladder included
  • Provides liquid for about 2+ hours of exercise, depending upon individual hydration needs
  • 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
  • Compressi-flex™ rear tension and dual compression straps stabilize without restricting movement
  • Contoured shape for a comfortable fit that doesn't inhibit range of motion
  • Evenly distributes load; reduces pressure points
  • Rear padded mesh panel for comfort
  • Sternum speed hook straps secure fit, no snap buckles
  • Quick access hydration pocket with buckle closure
  • Front stretch mesh pocket for gels or bars, large enough for additional water bottle
  • Magnon Electrolyte Pocket™ with simple magnet closure on right strap for electrolyte capsules
  • Lightweight zippers with pull tabs; grab easily even when wearing gloves or with cold fingers
  • Left mesh pocket and zipper pocket to stash small accessories or nutrition
  • Rear easy-access stretch pocket stashes lightweight apparel, gloves, warmers or other accessories
  • Top zipper pocket for headlamp, phone, keys, nutrition or other small essentials
  • Rear shock cords store poles
  • Torso Length: 16 inches (40.6 cm)
  • Pack Volume: 500 inches³ (8.2L)
  • Weight: 15.9 oz (450 g) with empty reservoir

Bladder Details

  • Replaceable 70 oz (2L) Hydrapak® bladder
  • Top-fill Slide Seal allows for easy filling and cleaning
  • Unique push/pull Infusion valve opens and closes easily; provides high flow rate of liquid and seals with audible Surelock feature "click"
  • 3 O-ring valve design prevents air from entering hose while open; provides secure seal in closed position
  • Plug-N-Play button for quick disconnect of tube from bladder; periodically lubricate O-ring and mechanism with olive oil to ensure proper function
  • Constructed of Thermoplastic Polyurethane (TPU) for strength and durability
  • Bladder resists tainting water taste
  • Durable, 5/16" diameter kink resistant drink tube
  • Fill scale helps you monitor fluid volume
  • Tube can be cut to desired length; simply remove hose connector piece, cut with sharp scissors and replace hose connector
  • Anti-Microbial additive keeps the bladder clean
  • Dishwasher safe on top rack

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