I always thought it was for car seat use. Like you could slip the bottom buckle through it to strap your baby in, then wrap the swaddle around them. Not sure if this is actually what it's for, just my best guess!
I use it to make a stronger more secure swaddle. One side goes over and I can pull it tight through the loop behind him before fastening over the second side.
I love this swaddle! Just for any one else who's baby manages to still get their hands up I found this amazing hack! We've been using it the past few nights & it works wonders! https://www.pinterest.com/pin/A1BscAAQgOcBXGzQimEAAAA/
Re: Summer Infant SwaddleMe
Edited for typos
That's brilliant! I would have never thought of that
https://www.pinterest.com/pin/A1BscAAQgOcBXGzQimEAAAA/