I saw someone on youtube review them, and they looked like they were a decent size. According to him the Sanita bambi XL was about 54 cm long and fit up to 70 cm.
He also reviewed the Sanita bambi kids and they apparently are 58 cm long and are designed for kids above the age of 3. He claims that they should fit up to a 28 in waist. Now these that he reviewed were the old kind but I don't think they have changed at all. The weight size on the package was the same as he said.
The diapers are from another country and I found a site to order them from. The shipping will be $45 dollars, which is why i want to know if they are any good before I order them. I know in the video he showed himself wearing them and they did not look like a thong on him like baby diapers normally do. Also he showed himself wearing them in a professional manner. He had on black pants like major diaper companies do.
The video is in a different language, but I translated the description. If you want I can link the video.