
Loved this T-shirt! The quality of the T-shirt is really good, it's not a cheap, thin T-shirt. I got black sparkles for the design and I love it.…
Disney Family Shirt
Fall · Halloween · Holiday 2026
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5.1K+ bought in past month
$21.99 Original price was: $21.99.$19.99Current price is: $19.99.Save 9%
Typically delivered in 3–6 business days (US)
This long sleeve tee is a wearable inside joke for anyone who has ever stared at a terminal window. It displays the exact “BEGIN RSA PRIVATE KEY” syntax in a clean monospace font, instantly recognizable to programmers and system administrators. The design references PKCS#1 formatting standards, turning a common code snippet into a conversation starter for developers who appreciate the nuances of encryption protocols. If you work with SSL/TLS certificates or manage server keys, this shirt signals your technical background without saying a word.
The print uses black text on light heather grey fabric to mimic real code structure while remaining completely safe for public wear. The monospace font replicates the visual style found in most IDEs and text editors, ensuring the “code style” looks authentic to those who know what they are looking at. This is a decorative piece of apparel that captures the aesthetic of programming without exposing any sensitive data or actual cryptographic information. The minimalist approach keeps the focus on the humor of the PEM header itself.
No, this is purely decorative apparel designed for tech humor. The graphic uses standard PEM header syntax as a visual joke but contains no functional cryptographic data or security vulnerabilities. You can wear it confidently knowing it poses no risk to your personal or professional security.
This tee is ideal for software engineers, system administrators, and cybersecurity professionals who recognize encryption formats. It appeals to anyone familiar with SSL/TLS certificates, RSA keys, or general coding practices. Whether you work in DevOps, backend development, or information security, this shirt fits the culture of geeky fashion.
Yes, it is appropriate for casual tech events, hackathons, and developer meetups. The minimalist design aligns well with typical geek culture attire while clearly signaling your technical expertise to peers. It works as comfortable casual attire that still communicates your professional interests.
The print includes the standard “BEGIN RSA PRIVATE KEY” and “END RSA PRIVATE KEY” markers to replicate the visual format of a PEM file header. It mimics the structure commonly seen in code editors, providing an accurate representation of how these files appear during development tasks.
This listing may offer multiple blanks under one design. Choose your style and size on the product page:
Not every store enables every option — only styles shown in the dropdown are available.
Design is printed with durable DTG (or equivalent) methods suited to each blank. Fabric weight and brand can differ by style and color — the images and option labels describe what you are ordering.
Each blank has its own size chart in the gallery or size guide. Adult tees are typically true to size; youth and toddler follow kids charts; totes are one-size. Always check the chart for the style you select.
Made to order per selected blank. Production time applies before shipping. Returns follow the store’s published policy for unused items in original condition.
Real reviews from verified Etsy shoppers.

Loved this T-shirt! The quality of the T-shirt is really good, it's not a cheap, thin T-shirt. I got black sparkles for the design and I love it.…
Disney Family Shirt
Alicia · Apr 27, 2025

Perfect. Just as pictured and described.
Disney Family Shirt
Georgann · Apr 26, 2025

I love my shirt!! It is sooo pretty!!!
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Kathleen · Apr 26, 2025

I absolutely love this shirt. It's very soft and well made. I highly recommend this shop.
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B. Wilson · Apr 24, 2025

Beautiful shirt. Fast service. Love the color.
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Dale · Apr 23, 2025

Super nice gift! Delivery took a while but the result is great.
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Nicole · Apr 23, 2025
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