This design contains all the Bitcoins that have ever been and ever will be created. BIP39 is an update to the mnemonic phrase used to generate a seed (seed phrase) for a hierarchical deterministic (HD) wallet in the world of cryptocurrencies, especially in Bitcoin. It is a list of 2048 common English words that can be combined to create a 12, 18 or 24-word seed phrase used to derive the private keys needed to access the Bitcoin in the HD wallet. BIP39 is crucial to the security of a Bitcoin wallet as it provides a convenient way to memorize a long and complex private key in a more human-friendly way, while also allowing for multiple backups to be made and stored in different locations.
.: 100% US Cotton (fiber content may vary for different colors)
.: Medium fabric (6.0 oz/yd² (203 g/m²))
.: Classic fit
.: Tear-away label
| S | M | L | XL | 2XL | |
|---|---|---|---|---|---|
| Length, in | 26.50 | 28.50 | 30.50 | 31.50 | 32.50 |
| Width, in | 18.00 | 20.00 | 22.00 | 24.00 | 26.00 |
| Sleeve length, in | 22.25 | 23.25 | 24.25 | 25.25 | 26.25 |