Each year, the Western States Endurance Run (WSER) draws the world’s toughest trail runners to take on 100 unforgiving miles across California’s Sierra Nevada mountains. It’s a race known for its blistering heat, brutal climbs, and a finish line that demands everything you’ve got.
So when it comes to gear, athletes don’t mess around. They go with what performs. What's proven.
At the 2025 Western States 100, all top male and female finishers trusted HydraPak—or the products we make for our partners—to keep them hydrated from start to finish.
From our SkyFlask™ handhelds to SoftFlasks and UltraFlasks tucked in vests, HydraPak is the quiet constant behind the scenes. We’re not just making gear—we’re enabling these athletes to reach their peak performance. Our products have become a staple amongst trail runners.
100 miles. 20+ aid stations. 18,000+ feet of elevation gain. One hydration brand trusted by elite athletes and brands.
