Whether you're running trail, training for a triathalon, or actually in the middle of competing in one, the Fuel Belt Ironman 3 Bottle Hydration Belt meets the needs of athletes of all abilities. Its Helium Hex Foam construction is super lightweight, comfortable, and water repellent to meet all the ups and downs of the trail. Fuel Belt also equipped this belt with specially designed air channels to enhance breathability and performance in warmer conditions, helping you keep your cool under pressure. For both the slow uphill trot and the all out sprint, the Helium Big Grip holster offers improved bottle control through a bounce free, feather light design. Over the undoubtedly rocky terrain you'll be crushing, this pack has two zippered pouches to keep your car keys and energy bars safe and secure. Without sacrificing comfort, strap adjustability, or performance, Fuel Belt made sure to reduce weight in all the right places to keep you cranking at full blast.