Where others see limits, we see openings. Conventional metal weights are inflexible and will cause harm and damage when utilized with an excessive amount of speed, so we concocted the SandBell®. Drop it, toss it, pummel it; it will withstand even your hardest exercise. Other weight vests are inconvenient and rigid, backing you off at each turn.The Hyper Vest PRO® is intended to move with you so you can push your breaking points and achieve your objectives. We don't exist in a static domain, so neither should our preparation. #TRAINHYPERWEAR to construct quality, versatility, steadiness, nimbleness, speed and power so you can perform taking care of business.