Featuring an intuitive and easy menu system and tap screen technology, the Ironman Sleek 150 is designed to let you train at your optimum with the minimum fuss. The Timex Ironman 150 sleek has 150 lap stopwatch memory, as well as alarms, a countdown timer with interval timer, hydration alerts, while remaining rugged and functional, including 100 metre water resistance and Indiglo low light visibility. The strap is designed to wick away sweat from the arm, ensuring comfort all day.