• May include: A navy blue t-shirt with a white square root symbol and the number 1600 inside.
  • May include: A blue and white Union Jack flag with the text "MADE IN UNITED KINGDOM" and a logo that says "DESIGN INVENTPRINT!" in white text on a blue background.
  • May include: A size chart for a crew neck t-shirt with measurements in inches. The chart shows the chest size for each size: Small (34-36 inches), Medium (38-40 inches), Large (42-44 inches), XL (46-48 inches), and XXL (50-52 inches).
  • May include: Red t-shirt with a white square root symbol and the number 1600 inside.
  • May include: Dark green t-shirt with a white square root symbol and the number 1600 inside.
  • May include: A dark blue t-shirt with a white square root symbol and the number 1600 inside.
  • May include: A royal blue t-shirt with a white square root symbol and the number 1600 inside.
  • May include: Six crew neck t-shirts in different colors: black, navy, charcoal, royal blue, red, and a logo for Design Invent Print.
  • May include: A white crew neck t-shirt with short sleeves. The t-shirt is made of 100% cotton and is 203 gsm. It features a ribbed collar, taped neck and shoulders, twin needle sleeves and hem, and a tubular body with no side seams. The t-shirt is available in sizes small (34/36), medium (38/40), large (42/44), XL (46/48), and XXL (50/52).
  • May include: A rack of various colored t-shirts hanging on black hangers. The text "Product Exchange or Replacement" is displayed above the shirts.
  • May include: A navy blue t-shirt with a white square root symbol and the number 1600 inside.
  • May include: A blue and white Union Jack flag with the text "MADE IN UNITED KINGDOM" and a logo that says "DESIGN INVENTPRINT!" in white text on a blue background.
  • May include: A size chart for a crew neck t-shirt with measurements in inches. The chart shows the chest size for each size: Small (34-36 inches), Medium (38-40 inches), Large (42-44 inches), XL (46-48 inches), and XXL (50-52 inches).
  • May include: Red t-shirt with a white square root symbol and the number 1600 inside.
  • May include: Dark green t-shirt with a white square root symbol and the number 1600 inside.
  • May include: A dark blue t-shirt with a white square root symbol and the number 1600 inside.
  • May include: A royal blue t-shirt with a white square root symbol and the number 1600 inside.
  • May include: Six crew neck t-shirts in different colors: black, navy, charcoal, royal blue, red, and a logo for Design Invent Print.
  • May include: A white crew neck t-shirt with short sleeves. The t-shirt is made of 100% cotton and is 203 gsm. It features a ribbed collar, taped neck and shoulders, twin needle sleeves and hem, and a tubular body with no side seams. The t-shirt is available in sizes small (34/36), medium (38/40), large (42/44), XL (46/48), and XXL (50/52).
  • May include: A rack of various colored t-shirts hanging on black hangers. The text "Product Exchange or Replacement" is displayed above the shirts.
Report this item to Etsy

40th Birthday T-Shirt: Maths Design, Gift for Men

RareOccasions  
5 out of 5 stars

Item highlights

  • Materials: Cotton
  • Made to order
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Item review

Why this review appears

All reviews are from verified buyers. This review is shown automatically based on factors like recency, whether it includes comments, your chosen language, and whether the rating reflects the typical experience with the shop.

Summarized by AI

Great quality Love it Looks great Fast shipping Perfect gift Great design Fits well

“Unusual but great idea for milestones birthdays - would buy again!”

Bernadette

25 days ago

View all

Price:$33.84

Original Price: $37.60

10% off

•

Limited time sale

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Shipping & return policies
  • Get it by
    Nov 12-19
  • Returns & exchanges
    Accepted within 30 days
  • Cost to ship
    $3.91 to United States, 43215.

Reviews for this item

What buyers say, summarized by AI: Great quality Love it Looks great Fast shipping Perfect gift Great design Fits well

5.0

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(57 reviews)

4.9 Item quality
4.7 Shipping
4.7 Customer service
100% Buyers recommend
Filter by category
5 out of 5 stars 5 This item

Bernadette Oct 14, 2026

Unusual but great idea for milestones birthdays - would buy again!

Bernadette Oct 14, 2026

5 out of 5 stars 5 This item

LINDA Jul 1, 2026

Good quality T-shirt, arrived very quickly and in good condition Thanks

LINDA Jul 1, 2026

5 out of 5 stars 5 This item

Lindsey May 20, 2026

great top, very happy with it

Lindsey May 20, 2026

5 out of 5 stars 5 This item

john Aug 27, 2025

still not arrived so can not rate it

john Aug 27, 2025

Seller's description

Specifications

May include: A navy blue t-shirt with a white square root symbol and the number 1600 inside.

Our 40th birthday t-shirt with this unique and original 'Maths' design, makes a great 40th birthday gift.

Even more importantly, this is a practical gift that can be worn on the day and due to it being made from 100% cotton can also be worn as an everyday shirt.

This is certainly not a throw away birthday gift.

When you gift this soft shirt, the lucky birthday boy will immediately know and appreciate your efforts to secure one of the best, printable shirts available, one the receiver will treasure for years to come.

This is a beautifully soft 100% cotton t-shirt, which has a durable finish.

If you require a different birthday design or birth year please check following section of our store:

https://www.etsy.com/shop/RareOccasions?section_id=16203798


MATERIAL:

Fabric: 100% cotton
Weight: 203 gsm

SIZING: (UK Sizing)

Size: S
Chest: 34/36 inches

Size: M
Chest: 38/40 inches

Size: L
Chest: 42/44 inches

Size: XL
Chest: 46/48 inches

Size: 2XL
Chest: 50/52 inches

PRODUCT INFORMATION:

- - 100% cotton
- Pre-shrunk
- Seamless twin needle collar
- Taped neck and shoulders
- Twin needle sleeves and hem
- Tubular body (no seems within body area)

Delivery details and policies

  • Get it by
    Nov 12-19
  • Returns and exchanges
    Accepted within 30 days.
  • Ships from
    United Kingdom
  • Cost to ship
    $3.91 to United States, 43215

    There was a problem calculating your shipping. Please try again.

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Star Seller

This seller consistently earned 5-star reviews, shipped orders on time, and replied quickly to messages.

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Meet your seller

RareOccasions
Luke Johnson
RareOccasions ·

Sandown, United Kingdom

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 4.9
·
32.7k sales
·
12 years on Etsy
Luke Johnson Terry Johnson Geoff Wigglesworth Emma Connolly
5 shop members

Usually responds in a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

View shop registration details

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