Weighted flies often help us get quickly to where fish are, especially in fast currents.
 
Semperfli Lead Free Heavy Weight Fly Tying Wire is easy to wrap around the hook in one or more layers for example to build up a shrimp body profile.  This wire has a density of about 60% that of lead so is still heavy enough to get your fly to where you want to fish on rivers and stillwaters, but still perfectly mouldable for shape to get the profile you want.
 
Non toxic Lead Free Heavy Weight Wire is also much better for the environment, unlike pure lead wires which has been banned in many countries for fishing.
 
Available in a range of sizes