The knit cap is lined with dependable insulating PTFE (Polytetrafluoroethene) material that is specially designed to protect your head from biting wind-chills. This machine-washable one-size-fits-most winter hat is perfect for keeping warm during your favorite outdoor winter activities.

Windproof PTFE Lining Makes This Knit Cap One Of The Warmest Winter Hats You Will Ever Own
Acrylic Composition For A Comfortable And Durable Beanie That Will Keep You Warm All Winter
Acrylic Material Stretches To Fit Most Head Sizes Then Retains Its Shape For A Warm And Reliable Winter Cap That Fits Just Right For Years On End