A team's outfit for a sporting event is their sports jersey. Each team wears a unique jersey from the others. The jersey is personalized with the group's name and the nation it represents. Over time, fashion changes and performance advancements have influenced design. Almost every trend appears to have been tried at least once, from v-neck to polo collar. Sports jerseys may also help clubs earn profit, either via sales or sponsorship advertising. Depending on the sport, each jersey is composed of a different fabric.