Long-sleeved baby sleep sack with a sun and moon design, made of 100% comfortable cotton. Perfect for those who have outgrown the newborn size, or for continuing the swaddling habit. I haven't used the long sleeves. I also didn't use swaddles much because the season was summer. I remember that I only put it on a few times, and often took it off to hold the baby. I think the neck and cuffs are clean, without any stains or yellowing. - Design: Sun and moon pattern - Size: M - Material: 100% cotton - Sleeves: Long sleeves, swaddle, and tank top styles available Swaddle Miracle Swaddle 100% Cotton Two-Sleeve Swaddle for Summer, Autumn, and Winter, Prevents Moro Reflex, Night Crying Solution, Swaddle, Baby Shower Gift (Star Pattern, M (5-7.5kg, 0-6 months)) Thank you for looking.