NWOT sealed in plastic - Ships next day The Daydream Pants Set in Regatta Stripe, a pool blue, features a tank top with wide straps and smocking at the back for a comfortable fit. The ankle-length pants have an elastic waistband. In our bestselling DreamModal, this pajama set invites deep summer sleeps (not just daydreams). Made of 95% modal, 5% spandex.