One 4 layer bamboo snap - in insert is included with each diaper. (happybeehinds.com)
I use 1 — 4 layer blend and 1 — 3 layer bamboo together and it's bullet proof. (clothdiaperaddicts.com)
I was using 3 Thirsties hemp inserts with an Applecheeks 3 layer bamboo insert staggered with 2 Applecheeks two layer inserts in an Applecheeks size 3 envelope. (sweetbottomsbaby.com)