HALO ComfortLuxe 2 Piece Set Silky 100% Polyester Machine wash Halo ComfortLuxe Advanced Comfort Sleepwear Coverall features Halo's exclusive ComfortLuxe fabric that breathes better than cotton to keep kids sleeping comfortably all year round This innovative and oh-so-soft fabric helps to promote healthier skin in children, the only garments to be awarded the seal of acceptance by the National Eczema Association Cooler, drier skin and a silky-smooth texture mean more comfort and less chafing, which can lead to fewer skin irritations Little ones wearing ComfortLuxe Advanced Comfort Sleepwear stay cooler, drier and more comfortable while they sleep Silky smooth ComfortLuxe two-piece sets are available in Newborn 6-12 pounds, 3-6 months 12-15 pounds, 6-9 months 16-18 pounds, 12 months 19-20 pounds, 18 months 21-23 pounds, 24 months 24-28 pounds, 2T 29-31 pounds, 3T 31-34 pounds, 4T 34-38 pounds