Cleaning Silicone Straps?

[Doofus]

I have an orange silicone strap, and a couple more bright-coloured straps incoming. The orange one is looking a little grey in places. What's best to clean it? I don't want anything caustic, so do I use washing up liquid, stick it in my ultrasonic bath or something else?

[TheThing]

I use washing up liquid, warm water and an old soft toothbrush. Works a treat.

[Doofus]

Thank you. That was my intention, but I know there will be PHers that suggest a Tibetan Yak Wax for £9,000,000 per kilo, and I thought that they needed an opportunity to speak up because we don't hear from them often enough.

[The Goat]

A good soft toothbrush & washing up liquid is all I use. Avoid using liquid hand soaps because the moisturiser in them usually leaves a film whereas something like fairy liquid will rinse off completely.

[Ninjin]

I only use tears from a suckling virgin baby and drying cloth made from Perisan Kitten down on my Casio.