Despite its vitamin D benefits, the sun can pack a big, unwelcome punch. High temperatures and damaging rays take their toll on little ones, particularly when you drive. Brightness can be a nuisance to their eyes (especially if car rides equal naptime), and car windows don't provide adequate protection against UVA rays - so it's good sense to practice sun safety while you drive. The White Hot® Safety SunBlock Shade by Munchkin keeps baby's skin and eyes shielded from the sun's glare. With a patented White Hot® system to let you know when it's too hot in the car, it's the best and smartest window shade on the street! This baby sun shade has an easy 2-step release button - just push and release to adjust, or push and hold to roll up. How cool is that?