Flexing Underdog T-Shirt

Item # UNDER003


In stock

Average Customer Rating:

4.5 out of 5 stars

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Sizes temporarily out of stock

  • XL
  • 2XL

Flexing Underdog T-Shirt

Meet Jay. He is 5' 8" tall and weighs 170 pounds. He is wearing size L.

Full Description

There's No Need To Fear! UNDERDOG is HERE! This shirt features Underdog flexing his biceps underneath his logo.
Color:Navy Blue
Material:100% Cotton
Fit:True To Size


  1. Happy!!

    5.0 out of 5 stars

    I gave this underdog tee shirt to my husband and now he thinks he can fly! LOL He loves the shirt and wears it all the time. It was a replacement for an old underdog shirt and he is very happy. Thankyou! BTW I have also sent this site to all my friends who have men who will not grow up.

  2. Got 100 compliments!!

    5.0 out of 5 stars

    I wear this shirt on the weekends. It's great!! Shoulders feel a little off but no matter. There's no need to fear, Underdog is here!

  3. Love the shirt. Need bigger sizes!

    4.0 out of 5 stars

    Bought it for a Christmas Gift. Will find out how he likes it after the holidays.

  4. A little disapointed.

    2.0 out of 5 stars

    I bought it to surprise my band, and audience, the next time we play the theme from Underdog. I ordered an XXL, which by any other manufacturer is a little big. This is a little tight, and the material is thin, and low quality. I don't mind paying for something good. Can't think of anything great about it. It is ok, at best.

  5. Awesome Shirt

    5.0 out of 5 stars

    Amazing product [...] I would 100% buy from 80stees.com again.

  6. Great shirt

    5.0 out of 5 stars

    I bought this shirt as a gift for someone who loved Underdog as a child. He LOVED this shirt and can't wait to wear it to the gym (I'm sure he'll have to explain to all the young people!)

  7. cool shirt

    4.0 out of 5 stars

    cool shirt

  8. exactly what I expected

    4.0 out of 5 stars

    Underdog Rules

  9. Great!

    5.0 out of 5 stars


  10. Excellent

    4.0 out of 5 stars


  11. Underdog is Back!

    4.0 out of 5 stars

    This shirt rocks!..What more can i say?

  12. Underdog shirt

    5.0 out of 5 stars

    [...]- product was what we expected. Only received a few weeks ago and has been worn many times already!

  13. Hugged by Underdog

    5.0 out of 5 stars

    I teach in a middle school and ordered this for our "Favorite Cartoon Character" day. It was a hit and everyone wanted to know where I found it. [...]

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