Ultraspire Zygos 6.0 – Hydration Vest for Trail Running and Ultra Distances
The Ultraspire Zygos 6.0 is a technical hydration pack designed for trail and ultra-distance runners who need stability, comfort and effective gear organisation.
The new version of Ultraspire’s popular model offers an improved fit, greater functionality and better weight distribution.
With a total capacity of approximately 14 litres, the Zygos 6.0 allows runners to comfortably carry hydration, nutrition and mandatory race equipment.
Its design is based on the ErgoFit™ system, which allows the pack to move naturally with the body and significantly reduces bounce while running.
ErgoFit™ Design for Stability
Ultraspire’s ErgoFit™ fit technology adapts the pack to the runner’s body so that it follows the natural movement of the torso.
The fit remains stable even on technical trails or steep descents.
Adjustable chest straps allow precise adjustment, while stretch materials provide comfort without restricting breathing.
Technical Features
- Total capacity of approximately 14 litres
- ErgoFit™ fit system for stability
- Lightweight construction for races and long training sessions
- Front pockets for soft flasks
- Multiple front and rear storage compartments
- Quick-access pockets for gels and nutrition
- Compatible with a hydration bladder
- Chest straps for fit adjustment
- Trail running pole carry system
- Stable, bounce-free fit
Materials
- Lightweight, highly durable technical fabric
- Stretch panels for a better fit
- Breathable mesh material for ventilation
- Durable stitching for use in demanding conditions
Weight and Capacity
| Feature | Information |
|---|---|
| Type | Trail Running Hydration Vest |
| Total capacity | 14 litres |
| Weight | approximately 200 g (without hydration) |
| Hydration | Soft flasks or hydration bladder – SOLD WITH 2 x 800 ML FLASKS (INCLUDED) |
| Use | Trail running / Ultra running |
Ultraspire Zygos 6.0 Size Guide
The correct hydration vest size ensures improved stability and comfort while running.
Size selection is based on chest circumference.
| Size | Chest Circumference |
|---|---|
| S | 76 – 91 cm |
| M | 91 – 102 cm |
| L | 102 – 112 cm |
| XL | 112 – 122 cm |
Ideal for
- Trail running
- Ultra trail races
- Long-distance training
- Mountain running
- Long-duration outdoor activities
Why Choose the Ultraspire Zygos 6.0
The Zygos 6.0 is a reliable option for runners who need a lightweight and stable hydration vest for long distances.
Its large capacity, ergonomic fit and excellent gear organisation make it ideal for ultra trail races and demanding mountain training sessions.














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