Check the listing for details. Black Diamond Sprinter 500 Headlamp Ultra Blue, One Size. Color: Ultra Blue, Condition: New. Listed at 74.00 USD. The Black Diamond Sprinter 500 Headlamp in Ultra Blue is a high-quality headlamp designed for outdoor activities like camping and hiking. With a sleek one-size-fits-all design, this headlamp features the trusted Black Diamond brand and a durable construction. The Ultra Blue color adds a touch of style while ensuring visibility in various lighting conditions. Perfect for any outdoor adventure, this headlamp is a reliable and stylish accessory for athletes and outdoor enthusiasts alike.