Signum profile image Signum

Shop Products

All Products Newest Products Popular Products

Albums

Motivation Anime Stickman CUTE DEISGNE Women’s Equality Day ABSTRACT Patrick's Day Spring/Summer SARCASM / FUNNY Blocky RPG Heroes Winter MUSIC GENERAL Halloween Goth, Game, Fantasy IMAGINATION Back and Front COP32 Climate Summit

Adult Apparel

T-Shirts

Socks

Shorts

Hoodies

Long Sleeve T-Shirts

Crewneck Sweatshirts

Tank Tops

Baseball T-Shirts

Kids Apparel

Kids T-Shirts

Kids Hoodie

Accessories

Hats

Bags

Stickers

Magnets

Phone Cases

Pins

Home Goods

Mugs

Tapestries

Wall Art

Pillows

Order Status Contact Support

Cart Preview (0)

Your Cart is empty

Invisible Code Designer Long Sleeve T-Shirt

$22.20
  • Invisible Code Designer Long Sleeve T-Shirt by Signum
  • Invisible Code Designer by Signum
Invisible Code Designer Long Sleeve T-Shirt by Signum Invisible Code Designer by Signum

Color: Black

Style
Size
Size Chart & Product Info

Long Sleeve T-Shirt FAQ

A sleek, modern t-shirt design for systems engineers who create the unseen. Ideal for coders, IT architects, and tech professionals.

100% cotton (Heather is a Cotton/ Poly blend). Pre-shrunk. Slightly heavier than our t-shirts but ideal for a long sleeve tee. Sized for men but can look great on women!

UPS MI Domestic (6-8 Business Days)

FedEx 2-Day (4-6 Business Days)

Estimates include printing and processing time.More Shipping Info

We want you to love your order! If for any reason you don't, let us know and we’ll make things right.Learn More

Profile image About Signum
Powered by Dashery
Contact Support Create a Dashery Store FAQ Order Status Log In Refunds & Returns Shipping Info Size Chart Social Responsibility Product Safety
© Signum 2026
Update Your Browsing Preferences
Intellectual Property Policy CA: Do Not Sell My Personal Information Cookie Consent Privacy Policy Terms