Jeffrey Stern
Mill Valley, CA | Ultra Runner
Born exploring the steep and technical trails around Mount Tamalpais in the San Francisco Bay Area, Jeff has been a lifelong trail runner. With multiple wins and FKTs under his belt, Jeff has raced over 28 ultra marathons and tackled countless shorter, faster and steeper races like that of the Dipsea, the oldest trail race in America, where Jeff is a 15x finisher. On top of training and racing, Jeff has taken on the role of Race Director for the Headlands Race, a Golden Trail Series qualifier.
Jeffrey Stern
Mill Valley, CA | Ultra Runner
Born exploring the steep and technical trails around Mount Tamalpais in the San Francisco Bay Area, Jeff has been a lifelong trail runner. With multiple wins and FKTs under his belt, Jeff has raced over 28 ultra marathons and tackled countless shorter, faster and steeper races like that of the Dipsea, the oldest trail race in America, where Jeff is a 15x finisher. On top of training and racing, Jeff has taken on the role of Race Director for the Headlands Race, a Golden Trail Series qualifier.
"During the summer I'm always trying to keep my hydration levels high and you really can never carry enough, so that's where the 42MM Filter Cap comes into play. It's so clutch when you're deep in the woods and stumble upon a stream; it filters super quick, I know I can trust it and it fits nicely on my favorite SkyFlask (plus many other HydraPak products, too). Can't leave home for a long run without this small, yet essential piece."
Jeffrey's Favorite Products
SkyFlask™ Speed 500ml
Handheld Hydration Innovation
SoftFlask™ 150ml
Reusable Nutrition Flask
42mm Filter Cap
On-The-Go Water Filtration
