Fall 2025 Gear is Here!
Run like it’s daylight.
Hydration Vest
Traverse
The Traverse is built for those who go long--offering a high-performance 20-liter capacity in a low-profile, race-ready design.
Born in the Mountains
Pure Mountain Running
Pure Mountain Running is for people who move through big country under their own power. Not for show. For outcomes. We built this category to solve mountain problems: stability under load, access without breaking rhythm, warmth and weather control without bulk. It’s a complete system—carry, light, hydration, accessories, tuned for steep decisions and long windows between aid.
Learn More 
How did a young man change hydration and running forever?
UltrAspire CEO Bryce Thatcher describes the early days of running, hydration, and his career.
Our History
Modern Hydration Comes From The Past
It all started in 1979 when Bryce was unable to find a pack that allowed him to maximize his performance, so he decided to make one himself using his grandmother's sewing machine.
Since then, Bryce launched the very first hydration company, invented hydration belts, packs, handhelds, vests, produced the first screw top water bottle for runners, and introduced many other industry firsts. His innovation came from need, and it continues out of the need to perform better.
Today, almost all hydration products are iterations of Bryce's original designs and he continues to drive the industry forward, setting UltrAspire apart from all other brands.
Stay In The Loop
Join Our Newsletter
Here's what you get:
- Exclusive insider news on new products
- Tips to race and train more effectively
- Exclusive athlete interviews
