The Dash loads fast action rods early in the cast, maintaining high line speeds to knock over heavy flies, punch through wind and power over long leaders. It has power when you need it but won't overload your rod, kind of like a tiger and pussy cat all rolled up in one.
Airflo is the only company that extrudes Polyurethane as a super tough coating on their fly lines. With the inclusion of their new “FLO” technology, they are now able to produce a line that has running lines slimmer in diameter than their competitors, without any of the durability issues associated with PVC.
The end result is a fly line that has a supercharged head to running line diameter ratio, glides through the rings with minimal friction and has all the handling attributes and durability of one of the best fly lines in the world."