Comparing a competitor’s PVC/vinyl fly line to the Monic Icicle in a one-hour ice water soak. The Icicle has NO COILING and NO MEMORY.

The Monic Icicle Floating Fly Line is winter-weather ready. The Icicle was originally developed for trout fisherman in the Rocky Mountains. Line is supple with no memory or coiling – perfect for cold streams, frosty rivers and chilly ocean water.

Available in sizes 4 through 12 Wt. at Monic.com – https://www.monic.com/

Also look at:
http://flyfishing-blog.com/flyfishing-blog.com/2019/08/13/orvis-pro-fly-lines/
http://flyfishing-blog.com/flyfishing-blog.com/2019/08/10/feed-picky-fish-with-rios-new-technical-trout-fly-line-family/
http://flyfishing-blog.com/flyfishing-blog.com/2019/07/17/rios-technical-trout-fly-line-video/