UltraSpire Epic XT 3.0 Hydration Pack – 35L Pack for Trail Running, Hiking and Fastpacking
The UltraSpire Epic XT 3.0 Hydration Pack belongs to UltraSpire’s Extreme Line range.
It is designed for runners, hikers and outdoor athletes who require high capacity, durability and a secure fit for demanding expeditions.
With a total capacity of 35 litres, the Epic XT 3.0 meets needs beyond standard training.
It is ideal for long-distance trail running, fastpacking, mountaineering, mountain biking, canyoneering, rock climbing and multi-day adventures.
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Capacity, weight and hydration
| Feature | Information |
|---|---|
| Total capacity | 35L / 2135 c.i. |
| Hydration reservoir | Compatible with up to 3L, not included |
| SM/MD weight with frame | 907 g / 32 oz / 2 lb |
| SM/MD weight without frame | 765 g / 27 oz / 1 lb 11 oz |
| MD/LG weight with frame | 964 g / 34 oz / 2 lb 2 oz |
| MD/LG weight without frame | 822 g / 29 oz / 1 lb 13 oz |
| Colour | Pitch Black |
| Fit | Unisex |
UltraSpire Epic XT 3.0 Size Guide
The Epic XT 3.0 is available in two sizes.
Select your size according to waist circumference and torso length.
The correct fit improves stability and reduces bounce when the pack is loaded.
| Size | Waist | Torso length |
|---|---|---|
| SM/MD | 27″–42″ / 68,5–106,5 cm | 16″–19″ / 40,5–48 cm |
| MD/LG | 27″–42″ / 68,5–106,5 cm | 19″–21″ / 48–53,5 cm |
Materials and construction technologies
- XT Fabric: durable fabric with high-strength ripstop fibres.
- XT Mesh: technical mesh that moves moisture away from the body.
- Sweat Proof Webbing: straps designed for use during heavy perspiration.
- MaxO2 Form: front harness fit system for stability and comfort.
- MaxO2 XT Buckle: buckle designed for secure adjustment during demanding use.
- Open-cell foam: on the shoulders and waist belt for improved comfort and moisture management.
Designed for extended expeditions
The roll-top closure allows the user to adjust pack volume according to the load.
Side and rear compression straps help keep the pack stable, whether fully loaded or nearly empty.
The back panel features a removable insert that follows the body’s natural curve.
This improves cooling, comfort and weight distribution during extended use.
Storage and gear access
- Large 35L main compartment for clothing, gear and food.
- Large rear mesh quick-stash pocket for immediate access.
- Four large front stretch mesh pockets.
- Waist belt with Fluidic Holster System for access to the rear pockets.
- Magnetic closure system on the rear waist belt compartments.
- Compression system for improved load stability.
Ideal for
- Long-distance trail running
- Fastpacking
- Multi-day endeavours
- Hiking and mountain exploration
- Mountain biking
- Canyoneering
- Mountaineering
- Rock climbing
Why choose the UltraSpire Epic XT 3.0
The Epic XT 3.0 is ideal for users seeking a high-capacity pack with a running vest design.
It provides room for substantial gear while maintaining a close-to-body fit.
It is an excellent choice for athletes spending many hours or days in the mountains.
Its secure fit, durable materials and intelligent organisation make it suitable for demanding outdoor expeditions.











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