Size S: 65 x 35 cm, 3-6 kg 100% Cotton [Featured in Hiyoko Club x Supervised by Doctors] HDI Certified, Prevents Moro Reflex, Magheart Swaddle, Nighttime Crying Solution Purchased for around 2500 yen Swaddle with arm access Double zipper allows for diaper changes without removing Used only at night for about a month I tried it to see, and it helped me a lot!