Ergodyne 6860 N-Ferno 2-Layer Winter Liner w/ Banox Shell is great for warming your noggin.  This awesome liner can be worn under a helmet as well with suspension attachments.

Features:

• 2-layer Banox FR3-Cotton/Fleece
• Shell: Banox FR3® Fabric lasts up to 50 washings
• Lining: 100% poly fleece
• Regular length
• Elastic gather at forehead
• Warming pack pockets