for soccer you aren't allowed to have metal cleats
They do. Get the ones with metal studs if you can.
men's studs fit the men's cleats and the women's studs fit the women's cleats
I own a pair of Cole Hamels' game worn adidas cleats - he has metal studs around the outside of the soul and circular rubber traction on the heel and toe areas. Hope this helps!
Early cleats were the men's leather, ankle high, work boots that often had a steel-toe cap. People hammered metal tacks or studs on the bottom of their shoes to provide more gripping power. There was a gradual movement to lighter weight shoes with fewer cleats. These cleats had rounded edges.