Soft cotton baby swaddle up. Set of two, size M, in pink and yellow. - Colors: Pink, Yellow - Material: 95% Cotton - Size: M Thank you for viewing. I used these for my two children, and they are still in good condition. I used size M from when they were newborns. The startle reflex decreased around 3-4 months, so the usage period was short. Both children slept well when wearing these, which was a great help. Having two is convenient for washing and changing. The mesh on the hands and feet was good for preventing overheating. Please feel free to ask any questions or make offers in the comments. Instant purchase is OK. Thank you.