Life jackets can be bulky, uncomfortable, and less than fashionable. But there's one crucial fact to remember: Life jackets save lives. According to the Centers for Disease Control and Prevention (CDC), drowning is the second leading cause of death for kids age 1 to 14. In 2009, 3,358 people were injured and 736 died in boating incidents. Of those who drowned, 9 out of 10 were not wearing life jackets. Research indicates that life jackets (often used interchangeably with the term "personal flotation devices") are the safest and best devices approved by the U.S. Coast Guard to prevent drowning. We've gathered the age-appropriate guidelines you need to select the best life jackets -- based on type, style, and fit -- to keep your kids safe this summer.