I used to wear the helmet liner by itself, but have been on an Under Armor kick for the last year. I wear the under armor skull cap under my Bomber hat, then I an option if it gets warmer. every section starts with an UA layer followed by either a wool layer or a heavy fleece. then I have my windproof,waterproof hunting clothes on over that.(after spendind the $$$ on UA, I gotta save somewhere! Then I have a liner sock, wool sock and my trusty Sorel Glaciers. I fit isn't too cold out I wear those insulated half coated gloves,they work good. If it is very cold, i switch to Neoprene. And my flip up sunglasses.