Meet drirelease® HEAT, an engineered blend designed to keep you warm, dry, and comfortable all day long. drirelease HEAT provides a higher thermal value in light weight due to the micro-denier acrylic,
a hygroscopic and heat-generating fiber. Blended with natural or regenerated cellulose fiber such as merino Wool or Lyocell, the yarn is designed to pull the sweat and vapor away from the body and first layer, enhancing thermal regulation. drirelease® HEAT provides a super soft feel and excellent pilling performance, suitable for base-layers, mid-layers, sweaters, and socks.