Additional warp cords were laid in parallel and woven in, you can see the colors showing through.
And of course the shape got messed when the tension on the warp gets out of alignment but the overall effect is pleasing.
some other designs that might interest you:
experimental string weave overview
wide blue tapestry woven rope cuff 4091
grey one button cuff 4095
More of these are available for you to purchase in the ETSY shop in the tapestry cuffs section
design and photos copyright 2017