They are not required by all recreational leagues ("no-check" leagues penalize offensive checking, and lower-skill leagues rarely see pucks leave the ice) and are often omitted for practice sessions not involving body contact, but they are virtually always worn by players during games. La historia de María y Annette Vea https://www.equiposparaspa.com/aparato-para-tratamientos-faciales-y-belleza-anad-ice-lifting/