Streamline your sun protection with the Ciele FSTCap Elite Cap. This ultra-lightweight running hat barely feels there, weighing only 37 grams. Run with confidence knowing that the lightweight fabric is crafted with TERRAstop ripstop fabric, and the outside features a DWR (durable weather-resistant) coating that protects against light rain. COOLmatic | EXP HOLLOWmesh™ knit with embedded carbon yarn helps ventilate hot air, keeping your head cool on your more demanding runs. On the rear, you can adjust to your ideal fit with a loop back closure, and the integrated brim keeps your eyes shaded from the sun.