i 'made' two HABs. bought 4m of cotton jersey from the local fabric store, cut it in two up the middle, and followed wearing instructions from - i think - this site, and the HAB site. it curled nicely at the edges and was fantastic to wear. yes the fabric does stretch a bit but as you tie it again each time you wear it, you can compensate by making it tighter. it was super comfy with my newborn and got a little less so as she got older and heavier. but it was easily the best $12 i ever spent! the only thing is that the knot is bulky. it could be reduced by narrowing the fabric at the ends of the wrap. it would also have been good to sew on a pocket or something to make it easier to find the middle bit, since that's what you need to get hold of first when you put the wrap on.

i hope that makes sense; i didn't get much sleep last night and my brain isn't working too well today