Summer is prime time for trail running—but it also brings real challenges: blazing temps, high humidity, and unpredictable terrain. Whether you’re training for a mountain race or just hitting your local trails, running in the heat requires the right prep, pacing, and gear.

As the snow melts and the trails dry out, spring is the perfect time to lace up your shoes and head outside. Trail running in spring is all about light layers, breathable fabrics, and bold colors that match the energy of the season.