OEKO-TEX certification logo: the OEKO-TEX wordmark in white on a green leaf shape.

21Rebel

Elliptic Curve Cryptography | Pique Bitcoin Polo Shirt

€30,21

Show your appreciation for the math and security that power Bitcoin with the Elliptic Curve Cryptography Bitcoin Polo Shirt. This shirt features a stylish design inspired by elliptic curve cryptography (ECC), the technology behind Bitcoin’s keys and digital signatures. Perfect for coders, cryptographers, and everyone who values privacy, secure transactions, and innovation.

Product Details

Classic and made to last, this Unisex Pique Bitcoin Polo Shirt is for all occasions. It’s crafted from a durable cotton pique fabric. The relaxed and flattering fit is designed to complement any body type. With a classic cut and crisp collar, it can be dressed up or down for sporty, casual, or more formal styles. 

• 100% ring-spun cotton
• Fabric weight: 5.2 oz/yd² (176 g/m²)
• Semi-fitted
• Side-seamed construction
• Placket with dyed-to-match buttons
• The fabric is OEKO-TEX Standard 100 certified

• Traceability:
- Knitting—Bangladesh
- Dyeing—Bangladesh
- Manufacturing—Bangladesh
• Contains 0% recycled polyester
• Contains 0% dangerous substances

Size Chart
Size chart for the 21Rebel polo shirt, sizes S to 4XL in inches and centimetres. A is the length from 71 to 87.6 cm, B the chest width from 50.8 to 71 cm, C the sleeve length from 44.5 to 61 cm.
Production Details

This bitcoin merchandise product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Elliptic Curve Cryptography | Pique Bitcoin Polo Shirt
Lightning Payment

All of our bitcoin merch can be paid with lightning as well as on-chain bitcoin payment.

Personal Wishes?

If you prefer a different color combination or have other wishes or suggestions just send us a request to 21rebel.store@pm.me and we will make you an offer that suits you.

Shipping

We are a print on demand store, meaning that your bitcoin items are not printed until you place your order. For the production of your bitcoin merchandise, 2-5 business days are added to the shipping time. The shipping time depends heavily on which country you are ordering from. Estimated shipping times are as follows:

  • Europe: 2 - 7 business days
  • USA: 2 - 5 business days
  • Australia: 2 - 5 business days
  • Japan: 2 - 5 business days
  • International: 10 - 24 business days

 Delivery Time 1-4 weeks

GPSR General Product Safety Regulation

Manufacturer contact information
Name: Printful
Email: support@printful.com
Address: Raina bulvaris 25, Riga, Latvia, LV-1050

  • Product: Gildan 64800
  • Age restrictions: For adults
  • EU warranty: 2 years
  • Certifications: Fabric is OEKO-TEX Standard 100 certified
  • Other compliance information: Meets the EU REACH requirements.