Perform Better is your source for Exercise Body Bars, Sandbags, and Weighted Exercise Vests. The solid steel Body Bar and Economy Aerobic Bar each come in 8 different weights. The Power Weight Bag is a soft bag that allows you to safely perform explosive throws, olympic lifiting variations and core exercises. Our weighted exercise vest (weight vest) selection includes the X2 Vest, Uni-Vest, Under-Vest, X-Vest, the Smartvest, and additional weights!