Renee highlights the Active Lined 4-inch Short, emphasizing its flowy material and comfort. It features a small side zipper pocket and a stretchy waistband, making it ideal for hot summer runs.

Sam praises the Smartwool Active Lined Short for its durability and odor resistance. The Merino/Lyocell blend liner manages moisture, and the outer shell remains comfortable even when soaked with sweat. Read more trail coverage.

Taylor recommends the Raide Thermal Dispersion Tee for its fine materials and strategic ventilation. The shirt's lightweight build and numerous perforations help dissipate heat effectively. Related: Power Naps May Aid Ultramarathon Performance, Study Suggests.

This original Runner World brief is based on reporting from Believe in the Run. Visit the source for its complete reporting, context and any later corrections.