12oz Sippy cup - GLOW
12oz Sippy cup - GLOW
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12oz Sippy cup - GLOW

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Create personalized Sippy cups for every occasion with these 12 oz. stainless steel sublimation Sippy cup tumblers! These tumblers feature a stainless steel inner tank too keep your beverages cool and warm for hours. They’re encased in a  polymer outer wrap for rich, full color transfers and a durable, premium feel and added feature glow in the dark. Lid is leak proof. 

Now includes transition lid.

Sippy Cup Template


  • 12 oz. sublimation Sippy cup blanks
  • Printable polymer outer wrap
  • Stainless steel inner tank
  • Can contain cold or hot beverages
  • Food grade material, BPA free
  • Available in white

Heat 360 Degrees, 6 mins

  1. Remove all plastic parts and lids
  2. Cut out design and affix to tumbler using heat tape
  3.  Place in Shrinkwrap bag on cup
  4. Use heat gun to shrink bag to tumbler
  5. Place in oven for 6 minutes at 360°
  6. Remove from oven
  7. Remove shrink bag and image from tumbler immediately 

-Please be mindful that we do not claim any of our kids cups to be leakproof, spill proof or unbreakable. The lids are plastic and can break when they are thrown, dropped, kicked or anything else that kids can do with the cups. We don't always carry replacement lids for purchase but if one is broken after it is received by the child it is not the responsibility of RTS to replace the lids. If you need a lid please shoot an email and we will check what we have in stock for purchase. Thank you for understanding and happy crafting. -RTS