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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 

You can enter your personalization in the Personalization box that appears above the Add to Cart button at the top of this page. Once you find the Personalization Box enter your personalization in that area and click Add to Cart.

If you have questions on how to order more then one and enter different personalization for each one, please visit our FAQ's. For more information on shipping times or costs, please visit our shipping information page.


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