Drennan Sub Surface Green Fly Leader is ideal for nymph and lure fishing and an ideal tippet material when you wish to get a nice flow onto the water with a small dry fly. The neutral buoyancy of this line aids presentation.

50m spools:

4lb (1.81kg) 0.20mm
6lb (2.72kg) 0.25mm
8lb (3.63kg) 0.275mm
10lb (4.54kg) 0.30mm