Having been very impressed with my fleece coorie (which I made myself because I didn't believe it would be practical!) I'm thinking of getting \link{http://www.brightsparkslingsshop.co.uk/store/WsDefault.asp?Cat=Kimmer-CottonandHempPouches&isThumbs=No&curpage=2&Thumbs=\a Stretch Kimmer} for summer and in the house where the fleece is way too warm.
I've also seen a mesh ring sling which is apparantly great for swimming.
Any opinions greatfully received!