Once I got that cut out, I pinned the hemp fabric to my bamboo fabric that I'm using as the 2nd layer. I've never used bamboo but it is a softer fabric than hemp, so I decided to put it on one side in case I ever decided to use it as an insert in a cover sometime because then it would be softer against her bum. It's also still supposed to be as absorbent as hemp so hopefully this works out for me! You could also do two layers of hemp though or two layer of bamboo or whatever you feel will suit your needs! Hemp is also soft and would be perfectly fine against baby's skin but the bamboo is just softer, so why not?!?
My two finished inserts! The bottom one is bamboo side up and the back one is hemp side up. I started out making 2 because I want to try them out before I use up all my fabric in case they don't work quite as well as planned. I think I am going to make a few that are 3 layers and also a few that are just 1 layer to add in as a doubler. That way, when baby #2 arrives, it doesn't have to use the 3 layers & extra bulk if it doesn't need it.