Girls' 4F thermal underwear is made of flexible and soft knitwear that adapts comfortably to the body and does not restrict movement. 4F Skin technology guarantees excellent thermoactive properties, wicks away moisture and retains heat. Seamless design minimizes skin irritation. The set includes a long-sleeved T-shirt and leggings, ideal for skiing, sledding and winter walks. Quick-drying finish ensures quick readiness for the next use.