“Brighten up bedtime with this must-have Zippy! Featuring smiley suns shining on a white background, complete with cheery yellow trim. Made from our signature Lunaluxe™ Bamboo with thoughtful features like fold-over feet & mittens, a 2-way zipper, and no scratchy tags.” Is very stretchy and super comfy fabric! “Lunaluxe™ Bamboo: 95% viscose from bamboo; 5% spandex, Gentle wash cold, Wash inside out, Tumble dry low” All quoted wording is from their website!