Best string for tomatoes

This year I’m going to use string to tie up my tomatoea instead of canes. Which string can I use that won’t disintegrate or snap half way through the season? Links to places where I can buy would be appreciated.

I have been using for a few years the jute string from Poundland.
The Charlie Dimmock range in a few variants and some in tins.
Its strong and use it to tie up all kinds inside and out around the garden.

Works perfect too in the greenhouse for the tomato tying up along with the tent peg packs for a £1 to fasten the string to the ground that drops from the horizontal canes.
I have horizontal canes at top secured each of end of greenhouse with ties and brackets.