long time ago for me now, but I use to use little lamb bambo nappies mostly, fleece liners and wool soakers, which are breathable. I also didn’t put any trousers or anything over the nappy… but then wool soakers tend to be so pretty you don’t want to cover them up anyway…. and I used a bali gauze wrap in the summer, then as Rye got bigger progressed to a mei tai, which I really liked because the opening at each side meant there was a good ventilation between me and my son. In the summer he wore very little when in the wrap, I tended to use oversize t-shirts or long sleeved shirts and kept them open. That way his skin was protected but he was also not too hot.