The Airflo Sweep fly lines feature a faster sinking belly and slower sinking tip and running line, allowing this range of Sinking fly lines to follow a U-shaped path through the water column. Much like the HI-D fly line of old.
The diving action of your flies getting pulled downwards by the belly make an attractive movement and the steeper angle at the end of the retrieve gives an almost vertical when you use faster sinking models making them absolutely perfect for fishing ’Strip & hang’ techniques.
Available in three types of sinkers: Di3, Di5, and Di7 belly sink rates, the tip of the Di3 sinks at 1.5inch per second where the belly sinks at 3inch per second, Di5 sinks at 3.5inch per sec, and the Belly sink at 5inch per sec, on the Di7 version the tip sinks at 5inch per sec and the belly sinks at 7inch per second.