Something to help save my back!

[always dreamin']

I need some help...maybe someone can remember for me. I saw a product awhile back to helped "save your back" while you are holding a baby/toddler. It kind of looked like a fanny pack. Does anyone know what I'm talking about? I'd appreciate any suggestions. I don't think my 13 month old DD is going to last the whole time in her stroller and she is getting very heavy.

Thanks in advance!