From Shimamura Closshi: Long-sleeved warm innerwear for babies and infants (*^_^*) Made with a quilted, bag-knit construction, so your little one can stay warm even in the cold winter. This is a set of 2 (4 pieces). ※ Regarding packaging and shipping To avoid excessive thickness, I will open the original packaging and repackage the items for shipping. If you prefer the items to be unopened, please refrain from purchasing. Thank you for your understanding (*^_^*) Although new and unused, these items have been stored at home. Thank you for your understanding. Shimamura Closshi Heattech Long sleeve innerwear shirt set long sleeve quilt Baby newborn underwear