This is from a post by Panama Bob on a thread about how to count weaves per square inch:
The Brisa weave leaves the diamond or honeycombed shape in the hat. Brisa weave hat, one-two days of weaving because the paja is doubled over doubled when weaving. The Llano is one to one, and in Cuenca could mean 2-3 weeks of weaving. In Montecristi, much longer because they only weave at certain times. In Cuenca, they weave all day every day if needed.
A nice little set of pictures:
Also, look at pages 7, 9, 10-15 of the Panama Canal thread, lots of good discussion about brisa weave, pictures of brisa and llano weave hats, links to videos.