Worlds Okayest Brother Funny Sibling Birthday Shirt

(2 customer reviews)

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    Classic Men's T-Shirt

    Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size.

    Size Half Chest Body Length
    S 43 cm 71 cm
    M 48 cm 74 cm
    L 53 cm 77 cm
    XL 58.5 cm 79 cm
    XXL 63.5 cm 82 cm
    3XL 68.5 cm 84 cm
    4XL 73 cm 86 cm
    5XL 78.5 cm 89 cm
    Size Half Chest Body Length
    S 17 in 28 in
    M 19 in 29.25 in
    L 21 in 30.25 in
    XL 23 in 31.25 in
    XXL 25 in 32.5 in
    3XL 27 in 33 in
    4XL 29 in 34 in
    5XL 31 in 35 in

    Size Guide

    Classic Women's T-Shirt

    Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size.

    Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 43 cm 71 cm
    M 48 cm 74 cm
    L 53 cm 77 cm
    XL 58.5 cm 79 cm
    XXL 63.5 cm 82 cm
    3XL 68.5 cm 84 cm
    4XL 73 cm 86 cm
    5XL 78.5 cm 89 cm
    Size Half Chest Body Length
    S 17 in 28 in
    M 19 in 29.25 in
    L 21 in 30.25 in
    XL 23 in 31.25 in
    XXL 25 in 32.5 in
    3XL 27 in 33 in
    4XL 29 in 34 in
    5XL 31 in 35 in

    Size Guide

    Men's Long Sleeved T-Shirt Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 46 cm 71 cm
    M 52 cm 74 cm
    L 56 cm 76 cm
    XL 61 cm 79 cm
    XXL 66 cm 81 cm
    Size Half Chest Body Length
    S 18 in 28 in
    M 20 in 29 in
    L 22 in 30 in
    XL 24 in 31 in
    XXL 26 in 32 in

    Size Guide

    Men's Tank Top Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 45 cm 69.5 cm
    M 48 cm 71.5 cm
    L 51 cm 73.5 cm
    XL 54 cm 75.5 cm
    Size Half Chest Body Length
    S 17.7 in 27.4 in
    M 19 in 28 in
    L 20 in 29 in
    XL 21.3 in 30 in

    Size Guide

    Men’s V-Neck T-shirt Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 43 cm 70 cm
    M 48 cm 73 cm
    L 53 cm 76 cm
    XL 58 cm 78 cm
    XXL 63.5 cm 81 cm
    Size Half Chest Body Length
    S 17 in 27.5 in
    M 19 in 28.75 in
    L 21 in 29.75 in
    XL 23 in 30.75 in
    XXL 25 in 32 in

    Size Guide

    Unisex Hoodie Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 51 cm 67 cm
    M 56 cm 70 cm
    L 61 cm 73 cm
    XL 65 cm 76 cm
    XXL 69 cm 79 cm
    3XL 76 cm 81 cm
    4XL 81 cm 84 cm
    5XL 86 cm 86 cm
    Size Half Chest Body Length
    S 20 in 26 in
    M 22 in 27.6 in
    L 24 in 28.7 in
    XL 25.5 in 30 in
    XXL 27 in 31 in
    3XL 29.9 in 31.9 in
    4XL 31.8 in 33 in
    5XL 33.9 in 33.9 in

    Size Guide

    Unisex Sweatshirt Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 52 cm 69 cm
    M 56 cm 72 cm
    L 60 cm 75 cm
    XL 64 cm 78 cm
    XXL 68 cm 81 cm
    3XL 76 cm 81 cm
    4XL 81 cm 84 cm
    5XL 86 cm 86 cm
    Size Half Chest Body Length
    S 20.5 in 27.2 in
    M 22 in 28.3 in
    L 23.5 in 29.5 in
    XL 25.2 in 30.7 in
    XXL 26.8 in 31.9 in
    3XL 29.9 in 31.9 in
    4XL 31.9 in 33 in
    5XL 33.9 in 33.9 in

    Size Guide

    Unisex Sweatshirt Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 52 cm 69 cm
    M 56 cm 72 cm
    L 60 cm 75 cm
    XL 64 cm 78 cm
    XXL 68 cm 81 cm
    3XL 76 cm 81 cm
    4XL 81 cm 84 cm
    5XL 86 cm 86 cm
    Size Half Chest Body Length
    S 20.5 in 27.2 in
    M 22 in 28.3 in
    L 23.5 in 29.5 in
    XL 25.2 in 30.7 in
    XXL 26.8 in 31.9 in
    3XL 29.9 in 31.9 in
    4XL 31.9 in 33 in
    5XL 33.9 in 33.9 in

    Size Guide

    Women’s Long Sleeved T-Shirt Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 40.6 cm 64 cm
    M 43 cm 66.5 cm
    L 47 cm 69 cm
    XL 49.5 cm 71 cm
    XXL 56 cm 72 cm
    Size Half Chest Body Length
    S 16 in 25.2 in
    M 17 in 26.2 in
    L 18.5 in 27.2 in
    XL 19.5 in 28 in
    XXL 22 in 28.5 in

    Size Guide

    Women's Tank Top Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 40.5-42.5 cm 68.6 cm
    M 43-45 cm 71 cm
    L 45.5-49 cm 74 cm
    Size Half Chest Body Length
    S 16-16.8 in 27 in
    M 17-17.8 in 28 in
    L 18-19.8 in 29 in

    Size Guide

    Women’s V-Neck T-shirt Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    S 38 cm 64 cm
    M 40.5 cm 67 cm
    L 44.5 cm 69 cm
    XL 47 cm 71 cm
    XXL 53 cm 72 cm
    Size Half Chest Body Length
    S 15 in 25.25 in
    M 16 in 26.25 in
    L 17.5 in 27.25 in
    XL 18.5 in 28 in
    XXL 21 in 28.5 in

    Size Guide

    Wonmen’s Hoodie Allow for a tolerance level of 2.5cm/1in. If you're unsure it's always better to choose the larger size. Note: These values relate to the individual garment size measurements as shown above.
    Size Half Chest Body Length
    XS 47 cm 64 cm
    S 50 cm 66 cm
    M 53 cm 68 cm
    L 56 cm 70 cm
    XL 59 cm 72 cm
    XXL 62 cm 74 cm
    Size Half Chest Body Length
    XS 18.5 in 25 in
    S 19.7 in 26 in
    M 20.9 in 26.8 in
    L 22 in 27.6 in
    XL 23.3 in 28 in
    XXL 24.5 in 29 in

    Size Guide

    Youth T-Shirts

     
    Size Chest Width Shirt Length Sleeve Length Note
    XS 41 cm 52 cm 34 cm 4-5 years
    S 43 cm 56 cm 37 cm 6-7 years
    M 46 cm 60 cm 39 cm 8-9 years
    L 48 cm 64 cm 42 cm 10-11 years
    XL 51 cm 67 cm 44 cm 12-13 years
     
    Size Chest Width Shirt Length Sleeve Length Note
    XS 16 in 20.5 in 13.5 in 4-5 years
    S 17 in 22 in 14.5 in 6-7 years
    M 18 in 23.5 in 15.5 in 8-9 years
    L 19 in 25 in 16.5 in 10-11 years
    XL 20 in 26.5 in 17.5 in 12-13 years
    Note: Allow for a tolerance level of 1 inch

    Size Guide

    Infant Short Sleeve Bodysuit
     
    Size Height Weight Note
    3M NaN cm NaN kg New born (0-3M)
    6M NaN cm NaN kg 3-6M
    12M NaN cm NaN kg 6-12M
    18M NaN cm NaN kg 12-18M
    24M NaN cm NaN kg 18-24M
     
    Size Height Weight Note
    3M 18-21in in 5-9lbs New born (0-3M)
    6M 22-24in in 10-16lbs 3-6M
    12M 25-28in in 17-20lbs 6-12M
    18M 29-31in in 21-24lbs 12-18M
    24M 32-34in in 25-27lbs 18-24M
    Note: Allow for a tolerance level of 1 inch

    Size Guide

    Toddler Cotton Jersey T-Shirt
     
    Size Height Weight Note
    2T NaN cm NaN kg 2T
    3T NaN cm NaN kg 3T
    4T NaN cm NaN kg 4T
    7T NaN cm NaN kg 7T
    5T 6T NaN cm NaN kg 5T/6T
     
    Size Height Weight Note
    2T 33-25in in 28-30lbs 2T
    3T 36-38in in 30-33lbs 3T
    4T 39-41in in 34-39lbs 4T
    7T 46-49in in 39-49lbs 7T
    5T 6T 42-45in in 39-49lbs 5T/6T
    Note: Allow for a tolerance level of 1 inch

Shipping and return policies

SKU: 1Tees11273 Category: Tags: ,

Inject some humor into your sibling celebrations with our Worlds Okayest Brother Funny Sibling Birthday Shirt. Perfect for the brother who doesn’t mind a bit of playful teasing, this shirt is not just clothing; it’s a lighthearted jest that shows your sibling love and the unique bond you share.

Themed Shirts for Sibling Fun

Worlds Okayest Brother Funny Sibling Birthday Shirt
Worlds Okayest Brother Funny Sibling Birthday Shirt

Our Birthday Shirts are designed to add a touch of humor and personality to family gatherings. The Worlds Okayest Brother Funny Sibling Birthday Shirt features a fun and slightly sarcastic message that’s perfect for birthday parties, casual family outings, or as a humorous daily wear item that’s sure to get some laughs.

Long Sleeve Options for All-Year-Round Teasing

Worlds Okayest Brother Funny Sibling Birthday Shirt
Worlds Okayest Brother Funny Sibling Birthday Long Sleeve

If your brother’s birthday celebration might take place in cooler weather, our long sleeve shirts are a great option. They provide the same playful message with added warmth, ensuring comfort and style while celebrating the unique joys of brotherhood.

Hoodies for Relaxed Family Gatherings

Worlds Okayest Brother Funny Sibling Birthday Shirt
Worlds Okayest Brother Funny Sibling Birthday Hoodies

For a cozy addition to your brother’s wardrobe, consider a hoodie with the same World’s Okayest Brother theme. These hoodies are perfect for keeping warm during family get-togethers, lazy days at home, or for a casual look that keeps the sibling rivalry fun and light.

At 1Tees, we believe that family celebrations, especially birthdays, should be filled with laughter and a bit of good-natured ribbing. Our themed apparel is designed to ensure that your gift not only brings a smile but also becomes a favorite conversation starter.

Conclusion Worlds Okayest Brother Funny Sibling Birthday Shirt

Worlds Okayest Brother Funny Sibling Birthday Shirt
Worlds Okayest Brother Funny Sibling Birthday Shirt

The Worlds Okayest Brother Funny Sibling Birthday Shirt is more than just a birthday shirt it’s a way to show your brother that you appreciate him in a fun, unique way. Don’t forget to check out our selection of tank tops and sweatshirts for more options to extend the sibling teasing. Visit 1Tees to find the perfect shirt to make your brother’s birthday a memorable event filled with humor and affection. Let’s make this birthday one where laughter is the best present!

2 reviews for Worlds Okayest Brother Funny Sibling Birthday Shirt

  1. Emily Brown

    I bought this shirt for my brother’s birthday, and he absolutely loved it! The size was just right, the colors were vibrant, and the fabric was very comfortable to wear. The printed image was sharp and the patterns were highly creative. Would highly recommend!

  2. Jacob Smith

    This shirt is a fantastic purchase for anyone looking for a fun and unique gift. The quality is top-notch, the colors are exactly as shown, and the patterns are beautiful and highly creative. It’s comfortable to wear and gets a lot of compliments. Definitely the world’s okayest brother shirt!

Add a review

  • Production Time: Processed within 2 – 3 business days.
  • Delivery Time: Expect to receive your order 5 – 7 business days from shipment date (US only).
  • Return policy: Eligible for Refund or Return and Replacement within 30 days from the date of delivery
  • Made-to-order. Printed and Shipped from US.
  • Note: Orders can be cancelled or modified within 8 hours after being placed
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