Justin Simoni is an adventurer, athlete, and writer based in Boulder, Colorado. Known for establishing difficult lines in the mountains by bike and by foot, Simoni carefully balances the line between fortitude and foolishness in his ultra-endurance mountain missions. His first mountain bike race ever was the Tour Divide: a 2,700-mile self-supported race from Canada to Mexico through the Rocky Mountains, which he has now toed the line for twice. Being intrigued to not just ride around mountains but summit the peaks themselves, in 2014 Simoni went about creating his own bikepacking/mountain running challenge of summiting the 58 Colorado 14,000'+ peaks. In 2017, he repeated the feat, but this time doing the highest 105 peaks in the State of Colorado, taking two months to complete it. Simoni also enjoys long and lofty ridge traverses solely by foot, having traversed unsupported and alone the Mosquito/Tenmile Range, and the Sangre de Cristo Range. When not finding the absolute limit to his own personal endurance, Justin enjoys teaching, guiding, drinking good coffee, and petting every dog on the trail.
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Justin Simoni
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Best Long Underwear of 2024
With temperatures dropping, it's time to play outside in the cold. We've compared 13 of the best long underwear...Best Travel Underwear of 2024
Layering systems should be built from the foundation up, starting with a quality pair of underwear. They should be...Best Slippers for Men of 2024
You'll wear good slippers nearly every day. We carefully tested (researching 30 models and purchasing 12 for direct...Best Boxer Briefs of 2024
We tested the best boxer briefs from SmartWool, Under Armour, Tommy John, ExOfficio, Saxx, and more to find the...Best Ultralight Tents of 2024
To bring you the best ultralight tent review, we've mostly focused on options weighing less than two pounds...10 Best Slippers of 2024
Our top loungers have found the best slippers to keep your feet warm and comfy, no matter if you're staying in to...Best Sun Protection Shirts of 2024
Finding the right UPF-rated sun shirt can be a challenge. To help, we've picked the best options on the market and put...Editors' Choice
Mountain Hardwear Canyon Long Sleeve Review
This button-up shirt features a well-thought-out balance of excellent sun protection, comfort, durability, and...Editors' Choice
REI Co-op Sahara Shade Hoodie Review
This sun hoodie's fabric is one of the best we've ever tested, with a high UPF 50+ rating while feeling great on your...Top Pick
Coolibar Andros Fishing Hoodie Review
The designers of this hoody must have put, "absolute sun protection" at the top of their priority list, then executed...Best Ultralight Sleeping Bag of 2024
We tested 17 of the top models available today to help you find the best bag for your lifestyle. Ultralight sleeping...Top Pick
Black Diamond Alpenglow Pro Hoody Review
A next-level sun shirt, for those high-octane adventures when only the best will do, this quarter-zip hoody...Top Pick
Ketl Nofry Hoodie Review
A perfect balance of breathability and good sun protection defines this hooded sun shirt made for those who like to...Best Ultralight Backpack of 2024
Keen to make ultralight backpacking more enjoyable? Over 10 years, we've purchased and tested almost 50 of the best...Top Pick
Six Moon Designs Swift V Review
Excellent comfort and large-load carrying capacity define this well-designed ultralight pack.
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