If you thought our Original No Future soft chews were sour, be warned, these No Future soft chews are stupidly sour. Brace yourself for Citrus Chaos. This Stupidly Sour No Future soft chew features the sourest side of lemons, limes, oranges, tangerines and grapefruits. No Future Stupidly Sour soft chews are not only sour on the outside, they re sour on the inside.