If your anti-rain spray isn't performing the way you expected, the surface is almost certainly why. Grease, fingerprints, road film and residue are invisible to the eye but create a barrier that prevents water-repellent treatments from bonding properly to your visor or lens. The result is uneven coverage, reduced water beading and a treatment that wears off far sooner than it should. VisioCrystal removes all of it, leaving a perfectly clean optical surface that any treatment can bond to fully. The step most people skip, and the one that matters mostApplying VisioDry anti-rain spray to an uncleaned visor is the single most common reason it underperforms. VisioCrystal takes 30 seconds to apply and is the difference between a coating that lasts and one that wears off after a single ride. It's why the VisioCrystal step comes first in every application guide across the range. Streak-free formula for all optic surfacesSafe for use on all polycarbonate and plastic visor materials, prescription glasses, cycling glasses, ski goggles, swimming goggles and camera lenses. The streak-free formula leaves no residue, surfaces are ready for treatment as soon as they're dry. 125ml: the personal use sizeCompact enough to keep on a garage shelf, in a kit bag or by the door. The 125ml provides plenty of applications for personal use and is included in the VisioDry Essentials Kit alongside VisioDry anti-rain spray and VisioFog anti-fog wipe. For workshop use or larger supply, the 250ml is available separately. Available for delivery across the UK, including England, Scotland, Wales and Northern Ireland.