Jeff Colt is a professional mountain athlete, climate activist, and writer from Aspen, Colorado. While he primarily focuses on ultra-running, he enjoys endurance in most any form. Born and raised among New Hampshire's White Mountains, Jeff grew up ski racing and running on trails and has kept those passions close to heart. He worked in the outdoor industry with leading trail running brands as well as leading camping, climbing, and skiing brands. He is known to send work texts from his In-reach because he often finds himself deep in the backcountry of the Elk Mountains running, biking, skiing, or climbing. From his work as a ski patroller and backcountry first responder to his multi-day efforts, Jeff knows what gear he can trust and is passionate about writing reviews that get newcomers stoked about exploring the mountains.
Showing 1-15 of 30 by Jeff Colt

Best Running Shirts
In the market for a new running shirt? Our extensive testing and comparison process will help you make up your mind...
Best Running Hydration Pack
After months of researching the most popular running packs on the market, our testers dedicated hundreds of miles in...
Editors' Choice
Ultimate Direction Ultra Vest 6.0 Review
Regardless of weather, terrain, or distance, this hydration pack is the top pick for everything from hiking to hundred...
Best Buy
REI Co-op Swiftland 5 Review
This pack works in the best, straightforward, simple way you want. With options for hydration systems and plenty of...
Top Pick
Salomon Sense Pro 5 Review
If going fast is your goal, then this vest is your tool. Though after taking it for a test run, consider upgrading to...
How to Choose a Hydration Pack for Running
There are several factors to help choose a hydration pack for your running needs. This article systematically helps...
Top Pick
Salomon ADV Skin 12 Set Review
A highly capable hydration pack for running and one of the most comfortable vests we tested. If you have some long...
Top Pick
Nathan Pinnacle 12L Review
We choose this pack for the expansive gear storage and the ease of accessing that gear while running down the trail...
Salomon XA Trail Review
With many upsides including material, breathability, seam placement and stitching, this shirt performs in the top half...
How to Select the Perfect Running Shirt
It is relatively easy to choose a top-quality running shirt, but there are still many factors to consider, including...
Ultimate Direction Race Vest 5.0 Review
If you are looking for a versatile lightweight running vest that will suit most runners needs, this vest will deliver...
Top Pick
Arc'teryx Cormac Crew Short Sleeve Review
The most protective shirt we tested, this lightweight running tee is made for all day adventures, offering excellent...
New Balance Q Speed Fuel Jacquard Review
A running shirt that prioritizes breathability above all else, using a perforated mesh fabric that functions well but...
Raidlight Revolutiv 3L V2 Review
This vest is made for speedy missions. It comfortably carries a trimmed down kit of essentials and moves well with...
Brooks Distance Review
A great combination of performance fit and casual comfort makes for an attractive, affordable running shirt. Our only...
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