Pack of four 100% cotton muslin swaddling blankets. aden + anais wraps are the ultimate in breathability and softness. The fabric's light, open weave allows a baby's body temperature to regulate itself naturally in order to prevent overheating, so that a swaddled baby stays cool in the summer and warm in the winter. It is gentle on baby's skin and durable for everyday use, as the more you wash it the softer it gets. aden + anais wraps are a generous size, measuring 47" x 47". In addition to the common use as a swaddling wrap, aden + anais wraps are versatile, useful as burp cloths, nursing shields, stroller covers to protect from sun, cold, wind or insects, portable crib sheets, stroller and car seat liners, tummy time blankets, and more!