Triathletes will love this "Eat. Sleep. Tri." stainless steel travel tumbler that is a perfect triathlete gift. This 20 oz. tumbler uses double-wall vacuum insulation to help ensure that both hot and cold beverages stay at, or near, optimal temperatures for extended periods of time, making it ideal for commuting, long road trips, school or work. This grab and go tumbler is perfect to use all year round, regardless of the weather, and a great way to surprise a favorite triathlete with a unique and useful triathlon gift idea.