How to level up my sneaker
Common sneaker can be instantly upgraded to legendary sneaker. Every user can only use vanguard upgrade for one time. The Vanguard Upgrade can only be applied to the free sneaker you received by registering an account.
Open the link below in your wallet browser, switch to BNB smart chain, enter your information to log-in.
Click the "Level Up" button, view the details, then click the "Level Up" button again.
Connect your wallet, than click "Level Up" button, approve your transaction, your sneaker will be automatically upgraded to legendary.