What Our Gearhead(R) Experts Are Saying:"I wore the TRLCap SC Comp on a long, hot trail run and the back mesh actually made a difference on the climbs. The roomier crown never felt tight, even hours in."The trail climbs steadily out of the trees and into open, exposed switchbacks, the kind of stretch where heat builds fast and shade disappears. The Ciele TRLCap SC Comp handles it with a higher crown that leaves room to breathe and a soft curved brim that keeps the sun out without ever pinching. It folds down small enough to stash away when the trail dips back into cover. By the descent, sweat has soaked through more than once, but the ZIPmesh panel at the back keeps pulling heat away instead of trapping it, borrowed straight from performance footwear for exactly this reason. The reflective detailing catches the last bit of light on the way back down, a small comfort when a long run stretches later than planned.