Keeping warm can be easy but staying dry as well is a little more difficult in the winter months. Indera has created the 2 layer HydroPur® Rib Knit Performance Thermal which combines a 7.0 oz. 100% HydroPur® inside and a 70% polyester, 30% Merino Wool outside. This heavy weight material wicks away moisture allowing for the ultimate in warmth without an excess of sweat. Indera also added scent blocking fibers to help reduce odor and rib knit cuffs to lock in the heat and keep out the cold.