Berkley Vinyl-Coated Tip-Up Line is designed specifically for frigid ice fishing temperatures, and is constructed with a braided core encased in vinyl to assure that your line is always pliable and easy to handle. This tip-up line is waterproof – non-soaking and non-freezing, features a low memory design and is strong and abrasion resistant.
We carry Berkley Vinyl-Coated Tip-Up Line in 20 and 30 pound tests in 25 yard spools.
I bought some and I love it. Very nice feeling and completely waterproof and freezeproof. The only downside is that it is very thick and takes of lots of spool space. Sadly I could only get about 45 yards of line on my tiny Frabill.
For a tip up line, I like it to be waterproof, not to tangle, easy to handle, and not cut my hands up. Problem solved. Vinyl coated tip up line. I use 30lb just in case. I fish where there is a legitimate shot at very large pike each time out.