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.
.: 50% cotton, 50% polyester (fiber content may vary for different colors)
.: Medium-heavy fabric (8.0 oz/yd² (271 g/m²))
.: Classic fit
.: Tear-away label
.: Runs true to size
| S | M | L | XL | 2XL | 3XL | 4XL | 5XL | |
|---|---|---|---|---|---|---|---|---|
| Width, in | 20.08 | 22.05 | 24.02 | 25.98 | 27.99 | 29.92 | 31.89 | 33.86 |
| Length, in | 27.17 | 27.95 | 29.13 | 29.92 | 31.10 | 31.89 | 33.07 | 33.86 |
| Sleeve length from center back, in | 33.50 | 34.50 | 35.50 | 36.50 | 37.50 | 38.50 | 39.50 | 40.50 |