Fleece is a polyester, which is a plastic derivative (if not a plastic, not sure). Since plastics are continually breaking down after production, I suppose there is a risk of some kind.<br><br>
Does the risk of the fleece and PUL out way the risk of the sposie? IMO, the sposie is the worst.<br><br>
Post over in Diapering, they know their stuff and their fabrics.