Make sure any shoulder pads you buy contain the NOCSAE logo and SEI certification mark!! Details: Effective January 1, 2021, boys' and girls' goalie chest protectors must be designed for lacrosse and meet the NOCSAE standard, ND200. All chest protectors and shoulder pads must contain the NOCSAE logo and SEI certification mark on both the packaging and the product to be legal for play.
USA Lacrosse Link with more details.