This amazing floatant delivers a very fine and even coating of water repelling particles to dry flies. The coating is so fine it is almost invisible! The floatant also helps trap air and improve buoyancy so it is useful for both dry flies and nymphs as well. The advanced formula utilizes nanoparticle technology in conjunction with hydrophobic (water hating) chemistry for unrivaled waterproofing performance. 1.8 gram bottle.