What is a stretchy wrap?
A Stretchy Wrap is a long piece of stretch knit fabric (think t-shirt material) that you wrap around you and your baby. Stretchy wraps should only be used for front carries. The stretch fabric is difficult to tighten properly and safely in a back carry, so stretchy wraps should never be used for back carries.
Pros: Great for newborns and young infants, up to about 15-18 lbs. Can be pre-tied so baby can be popped in and out leaving the carrier in place.
Cons: Not supportive enough for heavier babies, not safe for back carries.
DIY: You can definitely make your own. It is extremely easy and fabric is very economical. No sewing skills are even required! Try these instructions at Make Baby Stuff or these at Wear Your Baby.
How to use a stretchy wrap: YouTube video using the Moby D wrap and instructions from Boba Wrap