The World&';s Highest Quality Sandbag, Guaranteed For Life You&';re moving a sandbag, struggling against gravity, creating the sounds of a person getting better, and stronger. Do this often. Blast Metallica and invite others to make it more fun, or suffer in silence - your call. For 15 years, GORUCK Sandbags have been the gold standard for their quality and toughness. Use and abuse at will - they all come with our Scars Lifetime Guarantee.