This is one of several "All About" posts where each is about a particular type of commonly used baby carriers. I WANT HELP with pictures, comments and tricks to each brand you have experience with, how to use it properly, different carry options, and more! So please offer input to help supplement my information.
You can add homemade pouches to this thread, but only if you share the pattern you used (or at least link to where you got it). I would appreciate only safely made pouches be shared on here, so the best information is available.
Ring slings are similar to pouches and are covered here.
I am not very familiar with pouches, but hopefully others can help me out!
Pouches are loops of material that are worn on one shoulder. There are not rings to adjust like ring slings, so it is very important that you have the correct size! Some pouches are adjustable, but it's still important to have it sized to you correctly before placing baby in the carrier.
The dangers of "bag" slings and why correct positioning in a pouch is essential: http://babyslingsafety.blogspot.com/