Single 100% cotton muslin swaddling wrap. aden + anais wraps are the ultimate in breathability & softness. The fabric's light, open weave allows a baby's body temperature to regulate itself naturally, helping to reduce the risk of overheating. It is gentle on baby's skin & durable for everyday use. The more you wash aden + anais wraps, the softer they get. aden + anais wraps are extra large, measuring 47" x 47", so that new & seasoned mums alike can swaddle babies of all sizes with ease. Traditionally used for swaddling, these wraps can also be used as burp cloths, nursing & stroller covers, portable crib sheets, stroller & car seat liners, tummy time blankets, change table covers, & more.