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Finding the perfect fit should feel easy. Every Birthday Universe tee is made to order just for you, with love and care, so please take a moment to check your size before ordering.

Birthday T-Shirt Size Chart (inches)

Size S M L XL 2XL 3XL
Chest (flat, armpit to armpit) 18.5 20 22 24.8 26 28
Length (shoulder to hem) 26 28 30 31 33 34

About the fit

  • Relaxed unisex fit: comfortable and easy, never tight.
  • 100% soft cotton, available in Round Neck and V-Neck.
  • Same measurements for both necklines.
  • Between sizes? We recommend your usual size for a relaxed look, or one size down for a closer fit.

How to measure

  1. Lay your favorite t-shirt flat on a table.
  2. Chest: measure straight across from armpit to armpit.
  3. Length: measure from the highest point of the shoulder down to the bottom hem.
  4. Compare your numbers with the chart above.

Still not sure? We would love to help you choose. Email us at help@birthdayuniverse.co or call +1 (859) 446-5112. Every order is customized with love and care and delivered in 10–15 business days, with 30-day returns for your peace of mind.