Strong dense chenille. Great color options, wrap like you would peacock herl. Wapsi Herl Chenille is perfect for making buggy nymph bodies and thoraxes. It's similar to a really small version of Estaz. It has just the right amount of flash, and it makes a great thorax on all nymph patterns and a cool body on larger flies. This makes a great underbody on hopper and terrestrial patterns as well!