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Birthday Boy Dog Shirt - Blue

IB# 65240

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To ensure proper fit, use our handy sizing guide below and match your results with the info in the product description.

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Birthday Boy Dog Shirt - Blue
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Product Information

Celebrate and give your dog some fun in this Birthday Boy Dog Shirt in Blue!
  • Birthday boy and mustache cupcake 
  • Blue dog tee with exclusive direct-to-garment print
  • 100% cotton dog shirt
  • Machine washable!

Why We Love It:

The Birthday Boy Dog Shirt displays a manly cupcake with fireworks exploding for your party animal. This dog tank top features a sleeveless style with a high-cut, stay-dry belly for the ultimate in comfort and convenience. The soft, breathable knit is made of 100% cotton. Machine wash, cold and dry flat for best results. 

IB# 65240

Sizing Guide

Important Sizing Note: The following measurements are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the following dimensions (with a little room to spare in the chest and neck).

  • Back Length: 6.5"
  • Chest: 11" (Most Important)
  • Neck: 7"
  • Back Length: 9.5"
  • Chest: 15" (Most Important)
  • Neck: 10"
  • Back Length: 11"
  • Chest: 16" (Most Important)
  • Neck: 12"
  • Back Length: 15"
  • Chest: 19" (Most Important)
  • Neck: 14"
  • Back Length: 21"
  • Chest: 26" (Most Important)
  • Neck: 18"
  • Back Length: 24"
  • Chest: 32" (Most Important)
  • Neck: 20"
  • Back Length: 28"
  • Chest: 38" (Most Important)
  • Neck: 22"
How to Measure Your Dog's Feet for Dog Clothes

Items We Think You'd Love

Birthday Boy Dog Shirt - Blue Customer Photos - Send us your photo!




I'm super cute and Happy in my Birthday Boy Tee! Love Birthday's and my special shirt

By JENNIFER on Jan 3, 2019

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in Dayton Ohio

Diesel just celebrated his 6th Birthday and wore this shirt ALL day! He got lots of compliments and was very comfortable. It fits true to size and has vibrant print. So glad I picked this for his special day!!

By Courtney on Jul 22, 2018

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in Loganville GA

Charlie is such s good sport!

By Carrie on Jun 2, 2017

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in Atlanta GA

Auggie celebrated his first birthday in March! I love his Birthday Boy shirt and he was so proud to wear it all day. He got plenty of compliments and birthday wishes.

By Karlee on Apr 1, 2017

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in Brunswick Ohio

I searched the internet for the perfect birthday shirt for Bentley and by far this was the cutest!

By Danielle on Jan 19, 2017

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Customer Reviews


(15 Reviews)

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Loved it!

Posted On 07/22/18 by Courtney W from Dayton, OH    Yes, Courtney W recommends this product!
Diesel wore this all day for his 6th Birthday! He is a 71 lb. pitbull terrier and we got him the xxl. It fits true to size and was comfortable for him. He has sensitive skin and it didn't bother him one bit (no breakouts or itching). He looked adorable and got lots of compliments! Thank you so much for making his day so special with his new outfit!

Birthday boy!

Posted On 05/07/18 by Dorothy B from New York, NY    Yes, Dorothy B recommends this product!
Can’t wait for Maxi’s birthday. Just received this and tried it on him. This t-shirt fit him well (size x-small, Maxi is a 4-lb. yorkie).

Cute Birthday Shirt

Posted On 12/05/17 by kate s from New York, NY    Yes, kate s recommends this product!
What a very cute shirt! It will be worn every birthday !

birthday boy t-shirt

Posted On 11/06/17 by Carol J from Ipswich, MA    Yes, Carol J recommends this product!
This t shirt is a little on the small side and kind of tight for my little guy. The wording kind of blends onto the shirt too. So you cant really see what the shirt says. I would recommend that the company put brighter wording on the shirt so you can see it better in is not really defined on the shirt. I wouls also recommend that you get the next size up when ordering this product.

Birthday Boy Dog Shirt

Posted On 08/03/17 by MaryAnn C from Upper Marlboro, MD    Yes, MaryAnn C recommends this product!
Bought this shirt for my yorkie's birthday. So cute!

Nice Shirt

Posted On 07/23/17 by Elizabeth N from Penfield, NY    Yes, Elizabeth N recommends this product!
This is a very cute shirt - I got it for my Toy Poodle's birthday. It fit well and he looked adorable in it. We've bought many shirts at Baxter Boo and we always get lots of compliments.


Posted On 07/11/17 by A from ,    Yes, A recommends this product!
Cute shirt for birthday

Birthday Boy Tee

Posted On 06/20/17 by Jennifer S from Morristown, TN    Yes, Jennifer S recommends this product!
Very Cute and fits great!


Posted On 05/31/17 by R from ,    Yes, R recommends this product!

Birthday Boy Shines

Posted On 05/16/17 by Jodi A from Santa Rosa, CA    Yes, Jodi A recommends this product!
I love my pup's b'day boy shirt! Fits him perfectly and he's a 90 lb. lab. The colors didn't fade when I washed it; that's a plus! Anything from Baxter Boo is awesome and fun!

For his sixth birthday

Posted On 05/12/17 by lynne s from East Moriches, NY    Yes, lynne s recommends this product!
Cute shirt. I like these tshirts especially for after their tick medication. It keeps them from getting it on each other when my dogs play together.


Posted On 02/01/17 by Patti A. H from Cutler Bay, FL    Yes, Patti A. H recommends this product!
I ordered the Birthday Boy T shirt, I have a golden retriever. I have had a hard time finding apparel that will fit him. You company offered 3x and it fits beautifully. Thank you again. Patti

Runs small

Posted On 01/17/17 by Denise L from Rosedale, NY    Yes, Denise L recommends this product!
Very cute T-shirt but I'm returning it because the size is too small. I ordered a medium, but it fits like a small.

Happy Birthday!

Posted On 01/03/17 by Brandy T from Lufkin, TX    Yes, Brandy T recommends this product!
Happy Birthday shirt fits great and looks even better!

cute shirt

Posted On 12/21/16 by Janice B from , TN    Yes, Janice B recommends this product!
This shirt was just what we wanted for our golden retriever's birthday. It fit true to size. My only problem was that the shipping cost as much as the shirt. Otherwise, I was very happy and plan to order again.

Karen's Testimonal (Via Email)

The items were just as advertised. For the most part the items fit. I measured one dog incorrectly, so the sweatshirt is a bit snug. But, it fits the other dog nicely. Loved everything.

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