Never worn as it was summertime when baby was this sizeThe Bunting Airy is the perfect one & done starter muff for milder temperatures as it features a breathable airy-like exterior and a soft 100% cotton lining; 2 central zippers for quick in-and-outs; and a full body sac for your infant’s comfort.Consider this duvet-like suit your newborn’s slip-on coat on crispy days strolling with a bassinet or stroller. The Bunting Airy will cradle baby to sleep in no time.