I purchased this before giving birth as a measure against nighttime crying, but I didn't end up using it because my baby slept well. I think it's convenient to have one, or you could use it as a spare. Please note that I have only pre-washed it. It has never been worn. Product Features: * Babies feel secure in the "hands-up" pose. This "wearable swaddle" allows them to maintain this pose, providing the same sense of security they felt in the womb. * It suppresses the Moro reflex, which causes involuntary movements, allowing for a good night's sleep! * The wide hem provides ample space and doesn't constrict the hip joints, allowing for comfortable movement. * The two-way zipper allows for diaper changes without removing the swaddle. * Made of 100% cotton with excellent breathability and absorbency, it's gentle on baby's skin! - Design: Marine animal print - Colors: White, Pink - Zipper: Full-length zipper - Size: S (Please refer to photo 8) Material: 100% Cotton 　　　 Stretchy Retail Price: 2,280 yen (Purchased on Rakuten) Thank you for looking.