Designed for better sleep and cozy snuggles, our Blue Birthday Wishes Zippy is a one piece zipper pajama made from the softest custom-milled Lunaluxe® bamboo viscose. We've added thoughtful touches to our zipper pajamas like fold-over feet & mittens, a 2-way zipper, and made them tagless so they won’t irritate your baby or toddler’s skin. A Little Sleepies bestselling style, parents love them as much as their littles! Buttery soft, stretchy custom-milled Lunaluxe® bamboo viscose that’s gentle on sensitive or eczema-prone skin Seasonless fabric to keep littles cool in the summer and warm and cozy in the winter Fold-over mittens up to size 12-18 months to protect your little ones from scratching themselves Fold-over foot cuffs on all sizes to instantly convert from footless romper to footed sleeper Double zipper that makes those middle of the night diaper changes a breeze! No snaps, buttons, or interior tags Unique design fits three times longer than the average sleeper Snug fit in accordance with all CPSC safety regulations (our jammies are never treated with flame-retardants or chemicals) 95% viscose from bamboo; 5% spandex Machine wash cold Little Sleepies is proud to donate a portion of every sale to Alex's Lemonade Stand Foundation for Childhood Cancer.