Mästarn Defholder

Mästarn’s definition holder is suitable for both training and competition and comes in three sizes—Small, Medium, and Large—as well as four colors: black, beige, blue, and pink.

For most recreational runners, Medium is the best choice. If you run long sprint races or compete at the elite level, Large may be a better fit. If you’re a junior, veteran, or primarily run shorter courses, Small is the best fit.

What makes Mästarn’s armband unique is the slightly softer plastic that conforms better to the arm and provides greater comfort. There’s also a sewn-in reinforcement around the entire plastic shell that increases durability and reduces the risk of cracks. The adjustable straps, featuring Mästarn’s own design, ensure the armband fits comfortably and securely without chafing.

Whether you’re a beginner, a recreational runner, or an elite athlete, you’ll get a armband that combines light weight, high comfort, and long-lasting durability—designed to withstand rugged use in the woods.