This line is made for two things:
Having as little memory as possible and adding distance to your casts every time.
Zpey Speed Line features:
Zpey Speed Line - 32lbs (green):
A good choice when fishing for seatrout on the coast, in the fjord or in smaller rivers.
Ideal for fishing with single hand rod, switch rod and light double hand rods.
Recommended - from 18g lines and down
Zpey Speed Line - 50lbs (blue):
Your choice when fishing for salmon, steelhead or big seatrout in the river.
Ideal for fishing with double hand rods.
Recommended - from 18g lines and up