As being the name implies, Little Sleepies are noted for their soft-to-the-contact signature “Lunaluxe” bamboo fabric sleepers. They have fold above ft and sleeves that negate the need for socks or mittens, plus they’re so stretchy that babies can wear them for longer than A few other cotton alternatives. From https://flenzy.store/ship-design-kids-t-shirt-cool-t-shirt-printed-tee-shirt-for-kids/