Finally, we have found a waynot to have to nag your spouse/partner/kids about overexposure. Thedisposable SolarSafe is waterproof and easy to use. Activate the wriststrap by holding it out to the sun and it will turn purple. Coat itwith the same sunscreen you use on your family and when it changescolors it means it is time to reapply or find some shade. Just makesure that the lotion that you use is also waterproof.
Source: solarsafe.comAdded: 24 September 2007