PRO Trout Smooth Fly Line is designed with advanced compound tapers to be the best all-around trout line available and is the most versatile trout line available for multiple techniques and environments. The 50' head has a gentle front taper followed by a powerful belly for easy casting and delicate presentation. Longer rear taper is designed for better line control, casting, and on-water mending. 3 wt-8 wt. Shop all Orvis here.