Boys' sweatpants with improved Armour Fleece fabric, which will keep you warm, but is also breathable and stretchy, so it does not restrict your movement. The updated Armour Fleece fabric is slightly heavier, but still breathable and stretchy, so it will keep you warm and allow you to move. A softer, plusher inner layer traps heat to keep you warm and comfortable. Elastic waistband with external drawstring. Secure zip pockets on the hands. The main fabric contains at least 80% recycled polyester, excluding hems and embellishments.