The Three-Way features three different options for securing eyewear.Product Features. Micro 3-Way is Engineered to fit ultra-thin wire eyewear frames.. The Fat Cat is designed for the ultra fat eyewear frames.. The Fisherman is a shorter version of the 3 Way Retainer in EK durable micro 2.5 mm nylon cord resulting in a lightweight low profile eyewear retainer.. The Slip Cat & Bungee Slip Cat is a fully adjustable retainer leaving no excess cord behind the head.. The Bungee Cat is a stretchy 3 mm bungee cord.. Type - :Slip Cat 3-Way Retainer.