If you nymph fish you are going to lose flys that is a fact and now a days a store bought fly can run up to 2.50+/- for a GRHE !!!!. soooo shop at Micheals and any other place for materials that are going to be lost on the bottom of the stream/river and save the big bucks for the nice dry fly materials that will just get hung up in trees that you can rescue if you know the standing on one foot and nine and a half foot reach method of fly rescue..