Brilliant, and high vis which helps to not trip humans over!
Great quality. It doesn't absorb water so it doesn't get heavier like other long lines, meaning the dog doesn't feel more weight whilst using for training. The biothane doesn't get caught in stuff as much as other materials, and when it gets mucky, just wash it under the tap and all the muck just slips off. And, when we're using in the park whilst working on training and recal, or having running loose behind my dog as a backup, the high vis colour prevents tripping up humans!