Summer and cloth diapers and gen ?s

[Rhapsodi]

So I'm hoping to use cloth diaper with baby due in November.

I'm looking at all in twos. I'm unsure of the type of fabric to use inside. I like the charcoal bamboo but discovered how many chemicals are in that. So I'm thinking flannel, polar fleece, or hemp. What do you prefer and why?

Also what about summer? It looks like pul in humid areas (which I'm in) can cause rashes. Wool I guess would be a good option. How do you do this? Any one just use pul?

I don't want flats...