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Survival of the fittest is in full action with a flask set that exhibits the evolution of drinking.  Watch your options evolve with a set that steps with ounce advancement to cater to the necessary occasion.  Go from Cro Magnon 5oz to Modern Day 8oz in one cool set.  A guy could always use in a little caveman in his drinking vessel.  

Barwinism is a hysterical and very practical evolution man whiskey flask set, which comes with flasks in 3 stair-step sizes. You can purchase this design as is or supply your own graphics for the box and lid.  A really awesome gift for any guy that likes to take his good stuff on the go.  


  • (Small Flask) 5oz
  • (Medium Flask) 7oz
  • (Large Flask) 8oz
  • 15 x 5.5 x 1.5 in (Box)


You can only personalize the box and top of flasks