The Hot Chillys Women's Clima-Tek Crewneck Top features a buttery soft, cottony hand feel with all of the performance of a polyester/spandex. It features a relaxed fit with four-way stretch for unlimited movement. Activated Base Layer Top enhances thermal regulation and odor-blocking properties while Moisture Transfer Fibers move moisture away from the skin to keep you dry. The Hot Chillys Women's Clima-Tek Crewneck Base Layer Top is perfect for summer camping in the mountains and winter wear anywhere.