I've owned the Cabela's brand Outfitter Series Berber Pants w 4MOST WINDSHEAR and the Wooltimate Neck Gaiter with 4MOST WINDSHEAR for several years.
These are some of Cabela's finest products-- great design, fit, and durability at a great price. The pants are extremely warm, have well designed pockets and are ultra quiet. These pants retail for $89.99 - $99.99 which is a great deal.
Cabela's also makes other pieces with the same material and design including a jacket, a pullover, and a vest.