This Columbia mens TRAIL SUMMIT Omi Heat Blue Gorpcore Hiking Outdoor Beanie Hat features Columbia's proprietary Omni-Heat thermal reflective lining (shiny silver dots on the inside) which helps retain body heat for superior warmth in mild to severe cold conditions. A classic skull cap design, low-profile, and suitable for wear on its own or for layering under a helmet.deal for activities such as hiking, running, skiing, or general winter outdoor wear. Pre owned in excellent condition. ALWAYS QUICK SHIPPING