Single 100% cotton muslin swaddling wrap. The fabric's light, open weave allows a baby's body temperature to regulate itself naturally which helps to prevent overheating.  It is gentle on baby's skin and durable foreveryday 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 and seasoned moms alike can swaddle babies of all sizes with ease. Traditionally used for swaddling, our wraps can also be used as burp cloths, nursing and stroller covers, portable crib sheets, stroller and car seat liners, tummy time blankets, change table covers, and more.