[custom_adv] When it comes to winter play, layering is tricky: Too many layers and they'll overheat; too few and they'll freeze their tushes off. According to Catherine O'Brien, a research physiologist with the U.S. [custom_adv] Army Research Institute of Environmental Medicine, the key to keeping kids dry is conserving heat while still letting steam escape. [custom_adv] It's easy for fingers and toes to grow downright icy as your little one's body strains to conserve energy for his core, giving extremities the shivery shaft. Mittens will keep hands toastier than gloves, and they can still effectively scoop snowballs and build forts. [custom_adv] Look for a quality mitten or glove that offers insulation as well as waterproof protection from wet, melting snow, experts say. [custom_adv] For even more protection, choose handwear that extends up the child's forearm to keep snow out, or try a shirt/glove combo—no wet hands, no lost mittens! [custom_adv] Be sure your kids are clad in bright colors and/or reflective materials before they head out in the snow: Research out of Carnegie Mellon University in Pittsburgh found pedestrians are three times more likely to be struck and killed by cars in the weeks after the fall time change, as drivers and walkers struggle to adapt to the changing light. [custom_adv] Similarly, slippery roads and glaring snow or midwinter gloom can cause driving problems too. [custom_adv] Choose bright outer gear (white is not a good option) with reflective graphics on the front and back, shoes with reflective features, and/or place reflective tape on their clothing to ensure they're seen in all weather conditions.