Slopestyle is a winter sport in which athletes ski or snowboard down a course including a variety of obstacles including rails, jumps and other terrain park features. Points are scored for amplitude, originality and quality of tricks. The discipline has its roots in action sports like skateboarding and BMX and has very successfully crossed over into the snow sports worlds of skiing and snowboarding. Skiers use Twin-tip skis for their symmetry since they often go large portions of the course backward and for their balanced weight so as to not destabilize spins. Slopestyle tricks fall mainly into four categories: spins, grinds, grabs and flips, and most tricks done in competition are a combination of these.

Winter sports or winter activities are competitive sports or non-competitive recreational activities which are played on snow or ice. Most are variations of skiing, ice skating and sledding. Traditionally, such games were only played in cold areas during winter, but artificial snow and artificial ice allow more flexibility. Playing areas and fields consist of either snow or ice.