This bub is due in Feb in Alice Springs.... so we're talking serious heat.

Since I've worn the other two I can't imagine this one will be different but I'm worried about the heat.
Was going to get a Close Carrier, but I'm worried about the layers.
I have a simple duckcloth shell sling. I gave away my two linen mei teis so don't have those any more and only have my BBH Ohsnap which is for 6months and older.

Is there anything potentially better and/or cooler than a shell sling for me and bub?