Any restrictive or loose head gear may result in heat loss and ultimately frostbite, one size fits all just don't work in very cold weather conditions. A winter hat that is too loose constantly leaks warm air, and too tight reduces the capacity of thermal retention by reducing the air pockets in the material.
The Arctic Hat 6 in 1 Extreme Cold Weather Sport Gear is uniquely designed, very well made with double layer extra thick high performance material for maximum protection during the extreme cold weather condition. 3 different sizes perfectly fit children, adults and extra large person. The Arctic Hat is also very comfortable to wear, lightweight and looks great, ideal for outdoor activities when cold and inclement weather demand high performance outer protection. That Arctic Hat is simply the best product on the market, it offers the best features, the most versatility, and superior quality.