Be Realistic 

We can appreciate your need to make some extra loot and get the best price possible, but if you really want your shoes to move make sure you set a reasonable opening bid or Buy It Now. Sure, you can list your shoes at whatever price you want, but that's not necessarily gonna help you sell them. You can check out past eBay bids or even peep Flight Club under “historical prices” to get an idea what sales trends look like on your sneaker so that you don’t end up having to re-list them a dozen times and cut into your profit.