The brand will provide a recommendation size chart for each board based on your weight and boots size. Boot drag should not be an issue! Also, consider your height as well as the kind of riding that you are looking for. In the old days, people would hold the snowboard up to their noses and measure the size of the board. This method will give you an indication of your snowboard's size. However, it is important to take into account your weight as well as the size of your boots. A longer board will allow you to be more aggressive and ride in more rugged, steeper and faster conditions. The shorter boards will feel snappier and more intuitive to control, as well as easier to maneuver. This board is often used to ride through parks, narrow glades and moguls. The best size is ultimately a matter of personal preference. Before you buy your board, rent or demo one.