Building the Ball
The requirements for the ball used in league-sanctioned lacrosse play, according to US Lacrosse, are the same for both men and women. The ball must be solid rubber, weigh 5 to 5.25 ounces and have a circumference of 7.75 to 8 inches. As of 2014, all three main governing bodies -- US Lacrosse, the NCAA and the National Federation of High Schools -- agreed that only balls marked "Meets NOCSAE Standard" can be used in games.
Men's and women's balls differ only in color. In women's lacrosse the ball must be yellow, whereas in men's the ball can be white, yellow or orange, U.S. Lacrosse states.