Most babies use between 2,500 and 3,000 disposable diapers in just their first year of life, and they continue requiring diapers until they are potty trained, running the total cost somewhere between $1,500 to $2,000 for diapers for one baby, on average. Not to mention, disposable diapers account for 2 percent of the U.S.’s landfill waste.

That’s a whole lot of cash and trash. And while you may have tried making your baby’s waste more sustainable by buying “biodegradable” diapers, many of these “eco-friendly” diapers contain plastic and won’t break down for hundreds of years. This begs the question: is there any way to make your baby’s waste less harmful for the Earth?

The answer is yes—you just need to look in the right places. For all you modern parents, here is a detailed guide to the most sustainable diaper options around.