Editing Bull riding (section)

===Vest===
Bull riders wear a protective vest which is made of high density foam that allows the shock to disperse over a wide area, thereby reducing pain and injury. The vest's foam is covered with a ballistic material called [[Spectra Shield|Spectra]], similar to [[Kevlar]]. It is then covered up with leather, giving it a western look. 

Bull rider [[Cody Lambert]] was inspired to create a protective vest for fellow riders after witnessing the fatal injury of his friend and 1987 PRCA world champion bull rider, [[Lane Frost]] who died at the 1989 [[Cheyenne Frontier Days]] rodeo. After successfully riding his bull during the championship round, Frost dismounted and landed in the muddy arena floor. The bull then turned and pressed a horn against Frost's back and pushed him against the mud. Frost got up and took a few steps towards the bucking chutes and signaled for help. He then collapsed. He died on the arena floor before he could be transported to the hospital. No autopsy was performed, and it was assumed that when the bull pushed Frost against the ground, its entire body weight was on the end of its horn, breaking some of Frost's ribs and severing a main artery. 

Lambert based the bull riding protective vest on the one worn by his brother who was a [[Jockey|horse jockey]]. He debuted the vest at the [[California Rodeo Salinas]] in the summer of 1993, and for several months, he was the only bull rider using one. It was not until the spring of 1994 when other contestants began riding with vests. The number of bull riders with vests grew over the months, and by the autumn of that year, the vast majority of riders were using them. They were officially made mandatory for all contestants by 1996. Some bull riding vests also include a neck roll for protection to the neck, although very few riders use a vest with this modification.