It’s strong enough to hold back brush and limbs. It keeps you warm even when it’s soaked with rain or snow.
Wool has been used in garments for hundreds of years and has been a part of the Filson story since 1897. We continue to use durable, water-repellent, 24-oz. 100% Virgin Mackinaw Wool in our hats, trousers, and jackets because, many centuries and technologies later, it’s still the choice of outdoorsmen who need garments to protect them from brush and cold.