20+ views in the last 24 hours
  • A man wearing a black t-shirt with the text "I'M JUST A KID AN ADULT" and the phrase "AND LIFE IS A NIGHTMARE" printed on it.
  • A man wearing a black t-shirt with the text "I'M JUST A KID" and "AND LIFE IS A NIGHTMARE" printed on it.
  • A black t-shirt with text printed on it, set against a beach scene with waves and a sunset in the background.
  • A man wearing a navy blue t-shirt with the text "I'M JUST A KID AN ADULT" printed on it, along with a tattoo on his arm.
  • A woman wearing a navy blue t-shirt with the text "I'M JUST A KID" printed on the front and "AND LIFE IS A NIGHTMARE" printed on the back.
  • two people wearing black t-shirts with white and teal text and graphics.
  • A color chart displaying various colored sweatshirts hanging on a rack, with each color labeled.
  • a collection of clothing items with their corresponding sizes, including a tank top, a t-shirt, a sweatshirt, a hoodie, and a toddler's shirt. The sizes are listed in inches, with each item having a specific width and length measurement.
  • The image is a size chart for a GILDA 1800 Crewneck Sweatshirt, which is a heavy blend sweatshirt. The chart provides measurements for chest, sleeve, and length in inches, along with a labeled diagram of the sweatshirt.
  • A man wearing a black t-shirt with the text "I'M JUST A KID AN ADULT" and the phrase "AND LIFE IS A NIGHTMARE" printed on it.
  • Product video
  • A man wearing a black t-shirt with the text "I'M JUST A KID" and "AND LIFE IS A NIGHTMARE" printed on it.
  • A black t-shirt with text printed on it, set against a beach scene with waves and a sunset in the background.
  • A man wearing a navy blue t-shirt with the text "I'M JUST A KID AN ADULT" printed on it, along with a tattoo on his arm.
  • A woman wearing a navy blue t-shirt with the text "I'M JUST A KID" printed on the front and "AND LIFE IS A NIGHTMARE" printed on the back.
  • two people wearing black t-shirts with white and teal text and graphics.
  • A color chart displaying various colored sweatshirts hanging on a rack, with each color labeled.
  • a collection of clothing items with their corresponding sizes, including a tank top, a t-shirt, a sweatshirt, a hoodie, and a toddler's shirt. The sizes are listed in inches, with each item having a specific width and length measurement.
  • The image is a size chart for a GILDA 1800 Crewneck Sweatshirt, which is a heavy blend sweatshirt. The chart provides measurements for chest, sleeve, and length in inches, along with a labeled diagram of the sweatshirt.
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Two Designs I'm Just an Adult Shirt, I'm Just a Kid Shirt, Life Is a Nightmare Shirt, Funny Family Matching Shirt, Funny Adult and Kid Shirt

Nicholas

Designed by Nicholas

Owner of NikaRoutine

Please select an option

Please select an option

  • Choose ONLY 1 Design You Want Here:
    1. I'm Just an Adult Shirt
    2. I'm Just a Kid Shirt

    0/25

What to know

Made to Order

Yes

FREE shipping on all additional items!!!

---How To Order ---

1-) Please, check and review all photos

2-) Choose your t-shirt size and color

*Different styles of shirts may have different shades of same color choice due to different manufacturer brands.
*For this reason, we recommend you to match shirts from the same styles if you want precisely matching colors (exa. Unisex,Sweater, Hoodies, etc.).
*If you want perfect matching you can choose ""BLACK"" or ""WHITE"" shirts.""

3-) Click add to cart. You can go back to add more product

4-)Click ""Proceed to check out""

5-)When you check out, you can add a note to seller for any request

Unisex

Unisex t shirt fits like a well-loved favorite, featuring a crew neck, short sleeves and designed with superior airlume combed and ring-spun cotton that acts as the best blank canvas for printing.

Features: Side-seamed. Retail fit. Unisex sizing. Shoulder taping
---Care Instructions---

Wash item inside out in cold water, do not bleach, do not dry clean, hang to dry, do not iron directly on the design.

---Production and Shipping---

First Class Shipping is 3-5 business days(after processing time).

If you need item the sooner, please upgrade the shipping in the chart.

Thank you so much...

*** Please select your desired shirt size and style in the size selection section. We have different styles of tops like T-Shirt, Sweatshirt and Hoodies.

View full item details

What buyers say

Summarized by AI from all item reviews

4.9 (51)
Looks great As described Great quality Love it Fast shipping Fits well Perfect gift
View all item reviews

NowPrice:$4.95+

Original Price: $8.25+

40% off

•

Sale ends in 21:58:08

Shipping & return policies

  • Order today to get by Jul 31-Aug 8
  • Returns & exchanges not accepted
  • Ships from: Huntington Beach, CA
  • Cost to ship: $4.75
  • Deliver to United States, 43215

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Star Seller

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

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Reviews for this item

4.9

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.

(51 reviews)

4.9 Item quality
4.9 Shipping
5.0 Customer service
97% Buyers recommend

What buyers say

Summarized by AI from all item reviews

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

Filter by category
5 out of 5 stars 5

Marlia Jul 28, 2026

This shirt turned out even better than I imagined! Can't wait to show it off!

Marlia Jul 28, 2026

5 out of 5 stars 5

Kelsey Jul 25, 2026

Exactly as pictured/described. The official merch from SP would cost $20 extra just for shipping/taxes so this was a great alternative. I’m excited to wear it to the concert!

Kelsey Jul 25, 2026

Response from Nicholas

Hello, thank you so much for your valuable feedback! We truly appreciate your review and look forward to serving you again soon.

5 out of 5 stars 5

Etsy buyer Jul 20, 2026

My sister in law loved it for her concert

Etsy buyer Jul 20, 2026

Response from Nicholas

Hello, thank you so much for your valuable feedback! We truly appreciate your review and look forward to serving you again soon.

5 out of 5 stars 5

Courtney Jul 14, 2026

So excited to wear this to see Simple Plan in concert this month! The perfect shirt.

Courtney Jul 14, 2026

Response from Nicholas

Hello, thank you so much for your valuable feedback! We truly appreciate your review and look forward to serving you again soon.

Photos from reviews

Meet your seller

NikaRoutine
Nicholas
NikaRoutine ·

United States

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. 4.7
·
3k sales
·
1.5 years on Etsy

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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