To check the availability of a specific shoe size on Shoedeals4u.com, you can visit the website and navigate to the shoe category or brand that interests you. Once you have found the desired shoe model, you will often see a size selection option on the product page. By clicking on this option, you can view the available sizes. If the desired size is in stock, you will be able to add it to your cart. If it is not available, the site may indicate that the size is out of stock or provide an estimated restock date if applicable. For detailed stock information, checking the product page frequently or exploring different models may be beneficial, as inventory can change. Please consider looking on the current web page for any specific contact information or assistance regarding size availability if needed.