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UltrAspire ZYGOS 5.0 Hydration Pack

UltrAspire ZYGOS 5.0 Running Hydration Pack

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UltrAspire Hydration pack: Zygos 5.0
Our Price: £129.95
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UltrAspire Hydration Pack: Zygos 5.0

The updated 14 litre capacity Zygos 5.0 with lighter and stronger fabrics is a versatile, high capacity hydration pack. This durable, lightweight and comfortable wrap around vest-style pack with full front and rear string compression allows for a stable low-profile when either empty or fully loaded. The Zygos 5.0 includes a 2L reservoir (Hydrapak) as standard that fits into the removable insulated bladder compartment.

The pack’s MaxO2 Form adjustable closure system secures and adapts to the pack’s load. This innovative system can conform the pack to the body using a single pull. Similar to the MaxO2 Sternum, the shock-chords allow the pack to remain secured without impeding natural breathing. Featuring 8 on-the-go pockets there are 2 zippered shoulder pockets, a dual 4-way stretch mesh pocket, a pair of stretch mesh pockets (one of which is zippered and suitable for carrying a large cell phone), a zippered side pocket, and a magnetically closed side pocket. The main back compartment has been reinforced at the stress points with XT fabric which contains stronger than steel ripstop fibers. Twin z-pole attachments.

Available in 3 sizes to ensure a perfect fit.The multitude of pockets on the front and rear offer a plethora of secure and unsecure storage options for every ultra runner. Whether fastpacking, training over long distances or competing in mountain or ultra races, this hydration backpack is a versatile solution for athletes looking for one pack to do it all.

- Easy in and out bladder attachment, and insulated bladder compartment layer.
- Max O2 Form™ 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.
- Magnon pocket for sweat-free pills, with automatic magnetic closure for rapid access to pills and other essentials. Patent pending
- Quiet and large zipper pulls that are bounce free, easy to see, grab and pull.
- Lightweight, soft, breathable, but strong, large-holed mesh pulls moisture away from the body to keep skin dry and cool.
- Sweat proof webbing—won’t absorb water or get saturated and heavy.
- Silicone and PU coated feather-weight nylon fabrics resist water, abrasion and tears.
- Extra plush no-chafe binding, soft and non-abrasive against skin and clothing.
- Safety stitched bar tack on all stress points.
- Zig zagged stitching over elastic for ultra-durability, increased stretch and rebound.
- Reflective details on the front and back for nighttime visibility.

- Two zippered shoulder pockets, ideal for gps or tracking devices, with large easy-grab zip-pull.
- Three large pockets for soft flasks, bottles or storing nutrition, hat, gloves etc.
- Zippered sweat-proof pocket suitable for a large phone.
- Safety whistle.
- Max O2 Form™ 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.

- Large zippered pocket for secure storage, with large easy-grab zip-pull.
- Large magnon automatic magnetic closure pocket for rapid access to sweat-free pills and other essentials. Patent pending.

- Dedicated bladder compartment with removable insulation layer.
- Simple, fast, easy in-and-out bladder attachment system.
- Large 180 degree zippered rear storage compartment with large internal zippered compartment for secure storage (with key-clip).
- External stretch mesh open-top compression compartment
- 2x adjustable straps for load compression.
- 2x trekking pole bungee attachments.

Human shoulders aren’t straight, so a pack’s shoulder straps shouldn’t be either. Longer straps allow the back portion to sit deeper on the neck to prevent any rubbing. This addition in length helps to create slope as the straps come over the top of the shoulders and around the neck following the natural curve of the body. The harness then follows an S curve around the arms and chest area to avoid any hindrance to the running motion.

The harness construction also helps to keep the pack balanced at any capacity to ensure the same high quality fit empty or fully loaded. In regards to balance, the load is positioned lower on the back closer to the body’s center of gravity, the hips. This placement helps to stop unnecessary energy expenditure during the long haul.

A collection of technologies designed to dissipate heat and keep you cool. This system allows you to maintain a lower body temperature by dispersing heat during intense activity, keeping you performing at the highest level.

Anatomically engineered, the pack covers only what is necessary on the body to keep it secure thus allowing for your temperature to remain cooler during heavy energy exertion.

The most breathable mesh on the market, this 3-layered, large holed honeycomb mesh is made from polyester which helps to draw moisture away from the skin without absorption.

Made of Mylar, the insulated compartment reflects and traps temperatures to help keep fluids hot or cold. Additional foam with air pockets creates more space for the insulation to take effect.

Shock cord securing system that helps create a comfortable & natural breathing pattern while at the same time keeping the pack secure. The shock cord allows for stretch outward and 100% rebound which keeps the pack snug against your body empty or fully loaded with no restriction of movement.

Volume Capacity: 14L
Hydration compatible: 2x 550ml UltraFlask hybrid bottles ( not included ) or 2x 500ml Soft Flasks ( not included )
Reservoir compatible: 2 Litre bladder ( included )
Weight: ~454 grams including the 2 litre bladder (without bottles)
Colours: Pitch Black

SM: 30 - 36 in. / 76 - 91 cm
MD: 32 - 38 in. / 81 - 96 cm
LG: 34 - 42 in. / 96 - 106 cm
Measure wearing the clothes you intend to wear
A vest full of gear will fit smaller

UltrAspire Zygos 5.0 UK & Ireland supplier | Ultramarathon Running Store is the UltrAspire UK and Ireland online supplier/dealer/distributor/retailer. We also ship internationally, including to the US & Canada, Europe, Australia, New Zealand and the rest of the world. Product pages include links to UltrAspire reviews and UltrAspire videos. If you have any question or request please Contact Us.


UltrAspire Zygos 5.0 demonstration video

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1 Write a review »

  0 of 0 people found the following ultra running product review helpful:
5 of 5 Great Customer service and product February 20, 2024
Reviewer: Dylan Peters from Cheltenham, Gloucestershire United Kingdom  
My second UltrAspire pack and as good quality as my smaller one. Sizing is a little off and ended up swapping my M to a L without any issues. My smaller bag is a M and fits perfect so guess I'm between sizes.
Recommended and get it from here as the customer service is great.

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