Polyester,Cotton 👶TRANSITION SWADDLE - Helps safely and effectively transition them to wearable blanket 💤LONGER SLEEP – Innovative 3-layer design and sleeves provide a comforting weighted feel (without unsafe weighted components) to help reduce startle reflex for less wakeups ❤️SAFER TRANSITION – Allows your baby to move freely, with arm and hand access for self-soothing, once they’ve started rolling ✌🏿TWO-WAY ZIPPER - Easier diaper changes. Hip healthy design. 1.5 TOG MACHINE WASHABLE - 100% cotton shell, 100% polyester filling. We’ve removed the “Back is Best” embroidery from SleepSacks. To reduce waste, we’re selling through inventory and are unable to guarantee which version you will receive. Size 3-6 months Brand New in packaging, never opened, washed or used. baby shower gift fall winter spring summer sleepSack Halo color: heather denim dd64