Sports goggles or glasses can be worn by players for non-contact rugby. For players in contact versions of the game they CANNOT be worn.
Any protective gear is worn at the discretion of the parent / player but must conform to standards.
Players should NOT train or play in items of clothing that could cause injury to themselves or others, for instance hooded tops, very loose tracksuit pants or clothing with zips.
Coaches and referees must ask players to remove any item of clothing they feel is unsuitable.
The full version of IRB Regulation 12 which covers players clothing can be found here.