From what I can tell, it looks like a trenza de doce. Which I think translates to 12 strand braid. I did not find a tutorial I could understand, however it seems like a two over one under one over round braid that goes rectangulated automagically. I made a bracelet earlier today using 1/8th" pro lace from tandy and I didn't do something right, it seems too spongy. I might try this again around a core. On the other hand I've never braided anything before, so more than likely I just need to work at it some more.