The Snow Dragons Mason Micro Thermal Top is the warm fleece mid layer that every boy needs Fleece is breathable and warm so it makes a great layer under a ski jacket and over long underwear The Mason Fleece Top is special because it stretches with his movements so he stays comfortable when hes playing outside 180g high loft microfleece fabric insulates Anti pill fabric stands up to washing Flat lock seams are soft instead of itchy Stretch fabric for comfortable movement 1/4 zip style for easy layering