On days when you need more than a headband, the Endura FS260-Pro Skullcap provides maximum coverage, helping you retain precious body heat. Slipping on this skullcap feels something akin to slipping into a wetsuit. The neoprene-like Extrant fabric over the ears keeps both wind and water at bay. Thermolite panels on the front, rear and top, provide insulation and breathability in areas more likely to overheat. All panels use flat-lock stitching, eliminating irritating seams. The skullcap fits snug under a helmet. Available in size Small/Medium, Large/X-Large.