UltrAspire Zygos 4.0 Hydration Pack


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The Zygos 4.0 hydration pack is very versatile. This pack is lightweight and high capacity, a comfortable wrap around style with full compression allow for the lowest profile empty or fully loaded. The Zygos 4.0 can be used with a 2L reservoir, 550UltraFlask, or Wild Things 500ml soft flasks. New expandable mesh on the back panel gives 4 litres of extra capacity as well as storage in the front with extra pockets. Whether you are fastpacking, mountain biking, in a fast race, ultra race, or summit assault this hydration backpack is the solution for any athlete. Available through Wild Things in 3 sizes.

Also check out the new UltrAspire Zygos 5.0!

Race Line: Built for the competitive athlete, the Race Line focuses on Ultra & Trail running but can be used in any running scenario. Race Line products are sized to fit the athletic body, feature UltrAcool technology for maxiumum breathability on all race vests, made with very lightweight material for comfort during long distances, and created for pure performance.

Recommended Use:
Versatile Pack utilized in any run scenario, training or racing.

• Lightweight, soft, breathable, but strong, large-holed mesh pulls moisture away from the body to keep skin dry and cool.
• Silicone and PU coated feather-weight nylon fabrics resist water, abrasion and tears.
• Max O2 Sternum™ for unrestricted breathing while maintaining a stable pack. Uses shock cord with good stretch for unrestricted breathing but also good rebound on the stretch for a stable ride. Patent Pending.
• Plush feeling micro-fiber polyester edges, soft and non-abrasive against skin and clothing.
• Sweat proof webbing—won’t absorb water or get saturated and heavy.
• Safety stitched bar tack on all stress points.
• Quiet, bounce free, easy to see and use, zipper pulls.
• Zig zagged stitching over elastic for ultra-durability, increased stretch and rebound.
• Simple, fast, easy in and out bladder attachment.
• Magnon pocket for sweat-free pills, with automatic magnetic closure for rapid access to pills and other essentials. Patent pending.

Fit:  Unisex
Sizes: XX Small (26"-32"), X Small (28″-34″), Small (30″-36″), Medium (32″-38″) or Large (34″-42″)
Color:  Pitch Black
Hydration (not included):  2L Reservoir with mag-clip to secure hose. The UltrAspire two litre bladder is a perfect fit.
Bottle Compatible (not included):  UltraFlask or soft flask - the Wild Things 500ml flasks are an ideal fit.
Capacity: 854 c.i. (14L)

This is a unisex pack. Measurements are for chest size:

XX Small (26" - 32")

X Small (28″-34″)

Small (30″-36″),

Medium (32″-38″)

Large (34″-42″)

UltrAspire Zygos 4.0 Hydration Pack
UltrAspire Zygos 4.0 Hydration Pack
UltrAspire Zygos 4.0 Hydration Pack

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