The Little Lambs Adjustable Swaddle Wrap by Delta Children mimics the safety and comfort of mom’s womb and helps prevent startle reflex, promoting a safer, sounder sleep for your newborn. An easy option that allows parents to quickly achieve a snug fit, this super-soft swaddle features an adjustable design that fastens with hook and loop attachments to create the perfect fit. Made of 100% natural cotton, the Little Lambs Adjustable Swaddle Wrap is gentle on baby's skin, but durable and machine washable for everyday use. The perfect option, this swaddle will keep your little one comfy through the night--and when your baby sleeps well, so will you. Size Extra Small fits ages 0-3 months, 4-7 pounds.