Short answer: For streak-free windows and mirrors you usually only need water and a Wonder Cloth. Soak a new cloth in lukewarm water for 15 minutes first and rinse it out well, then it works at its best straight away. For stubborn dirt you add a small amount of washing-up liquid or all-purpose cleaner.
Do you know that feeling? You have just finished cleaning, but you still see streaks on your windows or mirrors. Frustrating. Maaike, one of our customers, ran into exactly the same thing.
From sceptical to convinced: what changed?
"Honestly? I was rather sceptical when I heard about these Wonder Cloths," Maaike says. "Another miracle product, I thought. But after using it once I was won over. On my glass shower door especially I saw the difference straight away. It finally came out really streak-free."

You see the difference against the light
A glass shower door is the most honest test there is: every wipe shows up. That is exactly where you notice what a good fibre does. Take a look at the iZi-Clean Wonder Cloth in the 12-piece pack.
What can you use the Wonder Cloth for?
- Windows and mirrors come out streak-free effortlessly
- Screens and tablets are clean in no time
- High gloss kitchens get their original shine back
- Stainless steel surfaces gleam like new again
- Glasses and crockery come out crystal clear
How do you use the cloth the first time?
A little patience the first time you use it pays off. Soak your new Wonder Cloth in lukewarm water for 15 minutes and rinse it out well. After that the cloth is ready for years of cleaning pleasure. The nice thing is that you usually only need water. For stubborn dirt you add a small amount of washing-up liquid or all-purpose cleaner.

Four cloths, the whole house
With a set in the house you always have a clean cloth to hand, and that is exactly what decides a streak-free result. Take a look at the Starter Pack of 4 pieces.
How does your cloth stay good for years?
- Wash it at 40 degrees
- Use iZi-Wash Sheets or plain washing powder with a dash of vinegar
- Avoid fabric softener and liquid detergent
- Do not put it in the dryer
- Wash the cloth separately or with the same colours
The iZi-Wash Sheets are perfectly suited for this. If you are unsure about a washing instruction, take a look at our frequently asked questions.
Why is this the sustainable choice too?
You need few to no cleaning products and the cloths last a long time. That is better for the environment and for your wallet. All the variants are in the Wonder Cloths collection.
Why households choose iZi-Clean
- More than 300,000 households came before you
- 15,000+ reviews collected via Trustpilot, Judge.me and WebwinkelKeur
- 4.8 out of 5 on Trustpilot
- 98% of our customers are completely satisfied