Egg-it uv is basically the same product as egg-it with uv strands woven into the yarn. The uv strands are extremely fine and much work was conducted to achieve the correct balance ov uv an egg-it. During the testing phase we focussed on not overpowering the egg-it with UV. The uv additive stands slightly proud of the core and adds that extra sparkle thats sometimes needed to persuade those finicky fish.