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UltrAspire Zygos 2.0 Pack

The Zygos 2.0 hydration pack is very versatile and Bryce Thatcher’s pack of choice. 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 2.0 comes with a 2L reservoir and a magnetic clip to keep your hands free. Whether you are fast-packing, mountain biking, in a fast race, ultra race, or a summit assault this hydration backpack is the solution for any athlete. Available in three sizes for a more comfortable fit.


Recommended Use:
50k to 100 mile Ultra trail racing in high mountains or with required gear lists


-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-fibre 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
Size(s): Small, Medium or Large
Colour:Luminous Blue/Precipitous Blue
Hydration (included):2L Reservoir with mag-clip to secure hose.
Bottle?Compatible (not included): UltraFlask, Formula 250, Human 20 oz 2.0, or Collapsible Bottle
Capacity:570 c.i. (9.34 L)