This is a swaddle that can be used from the newborn stage. My child sleeps well, so it was never used and outgrown. It has been washed and stored at home. Please refrain from purchasing if you are concerned or are overly sensitive. 100% cotton lemon-patterned swaddle, size S, with a full zipper for easy use. - Material: 100% cotton - Size: S - Design: Lemon pattern - Features: Full zipper Thank you for looking.