Scientific Anglers Amplitude Smooth Infinity Plus Taper Size:4WT Our unique tapered protrusion insures

Our unique tapered protrusion insures maximum thread spool tension and the bobbin’s ruby tip will keep the thread moving smoothly and prevents your fly tying thread to cut into the bobbin tube

Smaller flies sometimes require smaller bobbins

a full-frame design

so the fabric moves with you in or out of the water

and Cross-Current Chest Pack

Scientific Anglers Amplitude Smooth Infinity Plus Taper Size:4WT Our unique tapered protrusion insuresThe Amplitude Smooth series of lines are, simply put, the highest performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.