100% USA made from American organic cotton. This sleep sack features a lofty (7 oz, 237 GSM) medium weight waffle knit for year round use. It is plastic free and has a durable zipper for longer wear. Unique curved zipper design opens wider for easier diapering. Sleep sacks are safer in the crib than loose blankets according to the National Sleep Foundation. Solid sleep sacks are available in the shibori gift set.