Scientific Anglers Mastery Infinity Fly Line Size:WF3F and the arms and shoulders

and the arms and shoulders are cut for a full range of motion and a natural cast

SPACER MESH SEWN-IN HIPBELT

Stretch Water-Bottle Pockets

Updated for 2026 with highly water-resistant and super-durable materials

Full size: 10 x 18” / 25 x 46 cm

Scientific Anglers Mastery Infinity Fly Line Size:WF3F and the arms and shouldersTHE GO TO LINE FOR ALL FRESHWATER SPECIES The Mastery Infinity Fly Line has the power to bomb out streamers, yet retains delicacy for dry flies. It mends like an absolute dream, and delivers flies at all distances. Built a half size heavy, with a long head and substantial front taper, its perfect for everything from trout and panfish to pike and steelhead. HALF SIZE HEAVY LINE Theres a reason we call it the Infinity: there is no end to what youll be