What is a Head Start? Members of FLX Rewards can add Head Starts to their entry and improve their chances to win exclusive sneaker releases. Related articles Can I change my selected size if it doesn’t fit? What are the benefits of joining FLX? I no longer want this ship to me release. Can I cancel/decline my win? What happens if I change my default shipping or payment information after submitting a reservation? How do I get Head Starts?