This boys compression shirt use brushed inner fleece material providing a base layer to keep kids warm on cold days, material wicks sweat and dries really fast.4-way stretch construction allows a great range of motion; Flat-lock seams reduce chafing. These boys sports undershirts are comfortable to wear all day.Long sleeve fleece shirt designed for all seasons. Crew neck design makes these boys shirts easy to put on and off, or wear under soccer and baseball uniforms.The kids compression thermal shirt helps to control blood flow and prevents soreness, keeps your kids warm and comfortable during cold games and reduces risk of injury in sports.Boys / girls undershirt for games or sports like football, baseball, soccer, hockey, lacrosse, skating, and other outdoor activities. For all-over warmth, pair the shirts with Dizoboee Boys Compression Pants.