No. Each release can be carried out differently. This is determined by the manufacturing brand and sivasdescalzo. Generally, the brand provides some requisites we must comply with, pairs available for sale, and sivasdescalzo also considers estimated hype for that product, as well as specific technical considerations needed which could facilitate our customers the purchase.
At sivasdescalzo we try to inform ahead of time about the approach we are going to take to carry out the most attractive releases. We will always search for the purchase option that will prevent multiple purchase by the same customer, or the use of fraudulent software to place orders.