Unique patented wings allow natural ARMS UP positionARMS UP allows true SELF-SOOTHING = more sleepSwaddle in seconds with no breakouts0.2 TOG fabric is light & cool for warm temperaturesSingle layer of fabric to reduce risk of overheatingCertified รขโฌหhip-healthyรขโฌโข design allows the recommended flexion for hips & legsTwin zipper for easy nappy changesNo loose layers to kick off during sleepSnug fit for secure feel, warmth & comfortProudly supporting First Candle and SIDS researchFabric content: 97% Cotton, 3% ElastaneEasy care: machine washable & tumble dryer friendly