Simplify the following text for a Grade 9 native English-speaking person.
Original: Throwback uniforms and jerseys are one-time or limited-time variations on a sports team 's uniforms styled to resemble uniforms from that team 's past .
Simplified: Throwback uniforms and jerseys are one-time or limited-time types of a sports team 's uniforms that look the same way as uniforms from that team 's past .