Threadless
Sell
Your Art

Headwear string-theory Hats

Show: Products/Designs
Sort by: Relevance/Trending/Popular/New

Shop Headwear string-theory Hats at Threadless. Every hat here started out as art by an independent artist — printed on demand and ready to ship.

  1. Worship Coffee
    Worship Coffee by stevenrhodes
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  2. Cat Tree
    Cat Tree by tobefonseca
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  3. Earth with Moon balloon
    Earth with Moon balloon by wawawiwa
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  4. Retro Hoth
    Retro Hoth by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  5. Felix the cat vintage
    Felix the cat vintage by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  6. Meteor Thrower
    Meteor Thrower by digitalcarbine
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  7. Black Hole Glitch
    Black Hole Glitch by digitalcarbine
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  8. Eat The Rich
    Eat The Rich by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  9. Ah The Element of Surprise Project Hail Mary
    Ah The Element of Surprise Project Hail Mary by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  10. Royal
    Royal by milkbarista
    $29.95
  11. Ghost Of Disapproval
    Ghost Of Disapproval by obinsun
    $38.45
  12. I Love Being Around You
    I Love Being Around You by nathanwpyle1982
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  13. think twice?
    think twice? by poorlycatdraw
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  14. Tokyo Zoo
    Tokyo Zoo by DinoMike
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  15. Crescent Moon Glitch
    Crescent Moon Glitch by digitalcarbine
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  16. Captain Obvious!
    Captain Obvious! by polynothing
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  17. Project Amaze
    Project Amaze by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  18. Guerni-Cats
    Guerni-Cats by vincenttrinidad
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  19. Ghost Busted
    Ghost Busted by Naolito
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  20. The Future is Analogue
    The Future is Analogue by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  21. Kiwi Anatomy
    Kiwi Anatomy by McDanger
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  22. Funkalicious
    Funkalicious by Fen
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  23. Prehistoric Monster Japan Mount Fuji
    Prehistoric Monster Japan Mount Fuji by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  24. AT AT Walker Assault Squad
    AT AT Walker Assault Squad by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  25. Space Hop
    Space Hop by digitalcarbine
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  26. Runnin' Rhino
    Runnin' Rhino by alanis
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  27. USCSS Nostromo Weyland Yutani Logo Alien Spaceship
    USCSS Nostromo Weyland Yutani Logo Alien Spaceship by rocketmantees
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  28. Know Your Dinosaurs
    Know Your Dinosaurs by limetree
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  29. Not a Pipe
    Not a Pipe by alexmdc
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  30. Mister Mittens' Big Adventure
    Mister Mittens' Big Adventure by speedyjvw
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  31. Haikus Are Easy, But Sometimes...
    Haikus Are Easy, But Sometimes... by DesignbyProxy
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  32. Not Fast, Not Furious
    Not Fast, Not Furious by DinoMike
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  33. Schrodinger's Venn Diagram
    Schrodinger's Venn Diagram by Nathan Joyce
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  34. Freddie Mercury
    Freddie Mercury by Wirdou
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  35. Octopus Bike
    Octopus Bike by alanmaia
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  36. Lions Are Smarter Than I Am
    Lions Are Smarter Than I Am by keithmore
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  37. The Communist Party
    The Communist Party by tomburns
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  38. Bird of Fire
    Bird of Fire by ThePaperCrane
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  39. Infinity MPG
    Infinity MPG by arzie13
    $29.95
  40. Afternoon Delight
    Afternoon Delight by chrisbishop
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  41. The Collector
    The Collector by camillechew
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  42. Well, This Just Really Sucks...
    Well, This Just Really Sucks... by kreamy
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  43. The Great Retro Wave
    The Great Retro Wave by vincenttrinidad
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  44. Planet System
    Planet System by b3rni
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  45. The Magician
    The Magician by xizann
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  46. Fish Tank
    Fish Tank by Ronin60
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  47. Burgerman
    Burgerman by zackOlantern
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
  48. Ramen and cats
    Ramen and cats by ppmid
    $27.45Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time. $22
* Comparison prices are references to regular retail prices of the same or similar items in Artist Shops or at third party retail locations. Savings may vary over time.