I signed up with parasol, total collaborative, and the honest company. I had to pay for shipping still which was $4-$6. With the honest company and parasol I got like 8 diapers and a trial pack of wipes... But with total collaborative I got a full pack of 40 diapers and a full pack of wipes... Totally worth the $4 shipping. I'm not sure if the common brands of diapers -like pampers and huggies- do trials... But you can always check their website