Second skin: The children's thermal underwear set is good to wear at home or as a base layer under coats. The thermal underwear for boys is also great as pajamas on cold nights. It's perfect for outdoor sports like basketball, soccer, baseball, hiking, biking, snowboarding, skiing, running.
EXCELLENT FLEXIBILITY FOR MOVEMENT: The winter ski underwear is designed with 4 times stretch fabric offering excellent comfort and full freedom of movement to stretch kids muscles. The moisture-wicking thermo set with super elasticity ensure maximum balance between freedom of movement and muscles, keep child comfortable.
Instant Sweat Absorption & Prevent Body Odor: The kids base layers feature breathable and moisture-wicking polyester fabric that absorbs sweat instantly from exercise, stays away from unpleasant odors to keep kids dry and cozy.
Warm & Light: This kids baselayer comes with fleece lining and lightweight provided excellent keep warm performance and windproof function in cold weather, reduces heat loss and absolutely non-bulky.
Widened collar

Reduce friction and stress for children, keep the body contract and keep warm

92% Polyester / 8% Elastane
Ultra slim and light
absorb sweat quickly
SUPER WARM FABRIC
Keep your kids soft and comfortable and keep them warm in cold weather

Boys winter long underwear set works well at home or as underwear under coats. The long-sleeved shirts and pants are also great as pajamas on cold nights. It's perfect for outdoor sports like basketball, soccer, baseball, hiking, biking, snowboarding, skiing, running.

360° keep warm for kids, reduce heat loss
Four-way stretch, good elasticity
Quick drying and breathable

Note: The pants are designed for outdoor sports, so the pants have NO OPEN FLYING.