XUEXIMAN Kids Thermal Underwear Autumn Winter Thickened 100% Wool Lined Warm Pants Girls School Uniform Essential

Three-layer thickened design for enhanced heat retention and warming from inside out

Natural soft and delicate wool fibers that effectively lock air to form insulating air pockets, maintaining balanced heat

Excellent constant temperature performance with temperature increases of approximately 30°C to 35°C compared to ordinary thermal wear

Wool heating fibers provide rapid warming and continuous 24-hour heat retention

Skin-friendly, safe, non-irritating, durable, and colorfast wool filling

Comfortable elasticity allowing free movement without tightness, suitable for both boys and girls

High-waist design to keep the abdomen warm without constriction

Pants cuffs fit snugly around ankles to prevent cold air entry without feeling tight

Three-piece crotch design for unrestricted movement and comfort

Zero formaldehyde and fluorescent agents