Short-sleeve, footless, one zip — the Zippy cut for summer rooms and kids who run warm.Why parents pick the Shorty Built for warm nights: breathable, lightweight bamboo viscose keeps warm sleepers comfortable at naptime and bedtime. Easy-change zipper: smooth-gliding zip with a soft fabric tab at the neck, so hardware never touches their skin. One-piece simplicity: a complete outfit in one step — no snaps, no wrestling. Made to move: four-way stretch that keeps up with crawlers and climbers. Tagless and smooth: flat seams, nothing scratchy. Fabric & care95% bamboo viscose, 5% spandex. Machine wash cold, inside out, on a gentle cycle — keep it away from velcro and open zippers. Tumble dry low or lay flat. Skip the bleach and the fabric softener; bamboo viscose softens on its own with every wash.Sizes 0–3M to 18–24M · 100-night sleep trial — wash it, wear it, let them sleep in it. If it doesn’t earn its spot in the drawer, send it back within 100 nights and the prepaid return label is on us.