Not Your Keys, Not Your Bitcoin | T-Shirt

“Not Your Keys, Not Your Bitcoin” explains why self-custody matters: control of the relevant private keys allows transactions to be authorized without relying on an exchange or other custodian. Moving bitcoin to a wallet you control reduces custodial risk, but it also makes key management your responsibility. Secure backups, careful seed phrase protection, and an appropriate cold storage setup can reduce the risk of loss or theft. Financial sovereignty requires both control and responsibility.

Printed on a Next Level 6210 CVC T-Shirt.

Product Features

• 60% combed ring-spun cotton, 40% polyester — soft, smooth fabric made for clear printing
• Lightweight (4.3 oz/yd² / 146 g/m²) for breathable all-day comfort
• 1x1 ribbed collar — stretches on and returns to shape for a tidy neckline
• Self fabric shoulder tape and classic fit — maintains clean lines and resists stretching
• Tear-away and DTF inner neck labels — comfortable finish and crisp printed branding

Care Instructions

• Machine wash: cold (max 30C or 90F)
• Do not bleach
• Tumble dry: low heat
• Iron, steam or dry: low heat
• Do not dryclean

Frequently Asked Questions

What does “Not Your Keys, Not Your Bitcoin” mean?
The phrase means that relying on a custodian to hold the private keys means relying on that company to authorize withdrawals and safeguard the bitcoin. With self-custody, you control the keys required to authorize transactions.

Does self-custody eliminate every risk?
No. Self-custody reduces custodial risk, but it makes key security your responsibility. Losing a seed phrase without a usable backup, exposing it to another person, or approving a malicious transaction can still result in permanent loss.

What is the difference between a custodial and a self-custody wallet?
A custodial service controls the private keys and processes transactions on the user’s behalf. A self-custody wallet gives the user direct control of the keys, allowing transactions without a custodian’s permission while also requiring secure backups and careful key management.

What are the fabric and fit of this T-Shirt?
This Next Level 6210 T-Shirt has a classic fit and a lightweight 60% combed ring-spun cotton and 40% polyester construction. Review the Product Features and the selected color before ordering.

How do I choose the right size?
Compare the measurements in the product-specific size chart with a similar T-Shirt you own, laid flat. Check the width, length, and sleeve measurements, allow for the stated 1-inch tolerance, and confirm your selection before ordering.