Our most breathable TRLCap features our COOLwick AIR-Mesh to the front panel of our trail tested TRLCap. AIR-Mesh is a moisture wicking fabric that let’s cool air in and hot air out while also giving the cap more structure. Add to that our COOLwick wide mesh for the back panels, you’ll find this TRLCap to be the coolest and most breathable of any cap you’ve ever run in.
