Male rugby players will be able to join their female counterparts in wearing tights or leggings in matches.
Law 4 of the sport previously only allowed women to wear tights and leggings.
But worries about abrasions from artificial turfs have seen World Rugby change their laws to allow all players to wear them as a preventative measure.
"With some players susceptible to abrasions on artificial surfaces, the decision gives players the option to wear tights or leggings as a preventative measure, maximising access to the game," World Rugby said in a statement.
"World Rugby will also work with unions and registered artificial turf providers to ensure that rigorous best-practice maintenance programmes are observed that minimise the risk of abrasions, particularly in relation to brushing and watering especially in hot conditions."