Tennessee Tri-Star Waterproof Hat


Our Hydrometric is the perfect hat for your summer and fall adventures; whether it be repping your favorite football team, seeing your favorite band, out on the lake with your friends, or on the course with the boys/girls. 

  • Polyester construction is water-resistant and extra comfortable to handle years of adventures
  • Rubber-Molded Tristar Patch
  • Unstructured build
  • Custom printed interior front panels and nylon rope across the brim for added style
  • 100% Polyester
  • Laser-etched back panels to ensure that your head will feel cool and well-ventilated at all times when wearing this flat brim cap.


Retro Style & Modern Fit

Modern Grandpa Hat

Get the same vibe of that Tennessee hat sitting in your grandparents' closet, but with a perfect fit & without the stains!

Officially Licensed

Built To Last

1% For The Planet

Recyclable Packaging

Easy Returns

Technology & Features


Guaranteed to Last

We custom build our hats with high quality corduroy that will handle any situation you throw at it. These are indestructible hats that your grandkids will find in your closets decades from now.

Easy Returns

Perfect Fit Guarantee

We stand by our work & if you are not 100% satisfied with the fit of this hat, we will gladly accept your returns & exchanges.

Box of Rain

Hidden Lyrics

Want to know the hidden meaning of the words we write on the inner taping of the hat? Try to figure out why we named our company Rainbox and it will give you a good clue!


Do your corduroy hats fit a small or large head?

Our corduroy hats have structure built into them so that they won't sag over time. The structure makes the crown sit slightly higher than an unstructured hat. Additionally, our corduroy hats run slightly large so that they will fit people with medium to large heads perfectly.

How can I clean and care for my corduroy hats?

Can I bend the brim of your corduroy hats?

Yes, you can absolutely bend the brim slightly. We don't recommend doing a complete u-shaped bend, but instead we recommend giving it a slight bend if you prefer a bent brim over a flat bill.

What is your return policy?

See our return policy here.