If you would like to upgrade to a Triathlon level bamboo* insert (6 layers) instead of Marathon level (5 layers) with your diaper purchase, simply add it to your cart along with your diaper(s) prior to checking out.

Please note that upgrades must be purchased WITH your diaper. If you made your purchase and forgot to add your upgrade, please email me and I will refund and we can do a new transaction. This is because of paypal fees in separate transactions :)

Your insert will reach maximum absorbency in approximately 8 or so washings. Please note that your insert is not preshrunk and is designed to shrink as you prep it. It will shrink to the correct size after about 3 rounds through a hot wash and a hot dryer.

* Exceptionally soft French Terry knit fabric composed of 70% bamboo viscose and 30% organic cotton.