Scientific Anglers Mastery MPX Fly Line Waterproof Zipper Lightweight foam shoulder strap and

Lightweight foam shoulder strap and back panel

the Thunderhead Lumbar is built for your next big adventure

Its low-stretch core and SlickCast coating provide strong hook-setting power and durable casting performance for rivers

DWR-coated to offer solid protection against wind and rain without the unnecessary bulk

Classic field-jacket design with a modern tailored fit

Scientific Anglers Mastery MPX Fly Line Waterproof Zipper Lightweight foam shoulder strap andThe Scientific Anglers Mastery MPX Fly Line is a versatile all around floating fly line built for anglers who want powerful turnover, smooth casting, and reliable performance across dry flies, nymphs, and streamers. Originally developed as the evolution of the legendary GPX taper, the MPX is built a half size heavy with added front end mass to help load modern fast action rods quickly while still maintaining refined presentation control. Its AST