top of page

TREELINE BLOG
Join us as we explore the latest science-based insights on endurance training, deliver expert tips, and share inspiring stories from the track to the trails.
Search


Super Shoes Revolutionized Road Running. Where Are They in Trail Running?
Super shoes have taken over elite road and tracking running in the decade since they first emerged with Nike’s invention of the Vaporfly 4%. One category of runner that hasn’t gotten the same boost that everyone else got when super shoes appeared: trail runners. Research on trail running can be hard to do. Simulating rock and switchbacks on a treadmill in a laboratory poses some readily apparent challenges. Two recent studies provide some answers though.
Aug 3


I Kept Losing Toenails. Here’s What I Learned About Shoe Sizing for Ultras.
If you’ve run long enough, you already know this: your feet at mile 5 are not the same feet at mile 45.
After a series of races that absolutely trashed my feet, I decided to dig into what's actually happening during long efforts. How do blisters really form? Why does a shoe that feels fine in training fall apart on race day? What actually matters when picking the right fit?
May 13


Post-Race Reflections From Our Athletes at the 2025 JFK 50 Mile
Race-Day perspectives from Shae Rhinehart, Robbe Reddinger, and Coach Greg illuminate the experience of JFK 50 for future runners
Dec 17, 2025


Deep Dive: 14 Day John Muir Trail Gear List
A deep dive into what items I took on my 14 day JMT thru-hike, and why those items made the list over all other options. Choosing...
Jun 12, 2022


Testing the Latest Injury-Proof Running Shoes
What some of the latest developments in running footwear might mean for all of our success in the sport. I grew up with the barefoot...
Oct 7, 2021
bottom of page