Originals tight for kids is a long time favorite with a cotton-like hand feel that does not hold moisture. These kids' thermal pants are made with MTF Moisture Transfer Fibers, it moves moisture away from the skin to be evaporated so you stay warm and dry. Spun polyester yarns give these children's base layer tights a soft hand feel and spandex gives it a 4-way stretch so the body fit shape will move easily with you. The close fit of these kids' thermal pants reduces bulk and supports you in performance sports as well as causal use.