ISOspeed Multi filaments are unique and no other multi filaments feels quite like it.
Their multi has a hard polyester like shell but really soft on the inside.
ISOspeed Professional feels very similar to isospeed control+ maybe it just a thinner version of it.
Mantel(wrapping): Polypropylene, heat-sealed Power Ribbons
Core: Polypropylen, Power Ribbons
Structure : Ribbons
Shape : Round
Colour : Natural
Gauge : 1.20mm