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% cotton (fiber content may vary for different colors)
.: Medium fabric (5.3 oz/yd² (180 g/m²))
.: Classic fit
.: Tear-away label
.: Runs true to size
| S | M | L | XL | 2XL | 3XL | 4XL | 5XL | |
|---|---|---|---|---|---|---|---|---|
| Width, in | 17.99 | 20.00 | 21.97 | 23.98 | 25.98 | 27.99 | 30.04 | 31.97 |
| Length, in | 28.00 | 29.00 | 30.00 | 31.00 | 32.00 | 33.00 | 34.00 | 35.00 |
| Sleeve length, in | 7.24 | 7.76 | 8.23 | 8.74 | 9.25 | 9.76 | 10.24 | 10.75 |