SM-liiga is the top professional ice hockey league in Finland. Established in 1975, it features teams from various cities across the country, competing for the championship title each season. The league is known for its high level of play and has produced many talented players who have gone on to have successful careers in the NHL and international competitions. The league consists of 15 teams, and the season typically runs from September to April, followed by playoffs. SM-liiga is governed by the Finnish Ice Hockey Association and has a strong fan base, contributing to the popularity of ice hockey in Finland.