I just looked that the Bumpa. I is that the name of this weave or is there another name for this. I was trying to find some instructions because this picture looks different the the Bumpa on the M.A.I.L. website and I like the one here better.
Same weave, different render/point of view. Bumpa is Helm with one ring inside the "sandwiched" ring and the second ring alternates between under and over the "sandwiched" ring (instead of being inside with the other one). The "alternating" ring is what gives the weave it's "zig zag" appearance