A superb monofilament, we have sourced recently, that displays low memory and great abrasion resistance making it deal for all your squid side lines, leaders or other uses. 
 
Available in either clear or a smoke blue and various diameters.
 
As these coils are connected you can request linked coils so you have 200 or 300m in total length should you want it for heavy duty top shots.
 
Price is per 100m coil