You can get this deal, as one idea:
Clip the 40% off coupon and opt for Subscribe and Save.
Final cost: $23.17... or just 10¢ per diaper!
The other sizes are available as well, and they are all similar in price!
Remember, you are under NO obligation to continue with a "subscribe & save" item and can cancel at anytime. To cancel or modify your Subscribe and Save items, just click on “my account” and then “subscriptions” and then you can cancel and/or modify anything you want.