The Tacky signature silicone fly slots holds flies tighter, sheds water, withstands extreme temperature swings, and holds up to sharp hook points. The recycled polycarbonate provides a durable, shatter-resistant frame that will hold up, even when you inevitably drop it on the rocks in your excitement to get that dry fly tied on when a hatch starts. The recycled material is just another step in Fishpond's continued effort to reduce their footprint.