The 5150 Sienna BOA Snowboard Boots are for women who like to combine a beautiful looking boot with serious performance. The 5150 Snowboard Boots have a variety of features to make your snowboarding experience the best possible. The outsole of these boots is created with rubber with a good grip. The liner features lace lock and a flexible toe. In addition, the 5150 Sienna BOA Snowboard Boots have multiple ankle flex points for maximum performance and flexibility while riding your snowboard.