20km speed trail racing, daily training, trail running, road running, marathon Highly breathable stretch mesh Wraparound distributed loading system with four dedicated compartments and an external attachment point provides zoned storage for race kit, enabling scientific and efficient equipment management for more composed runs. Combined with the wraparound fit system, the waist pack contours precisely to the body and moves seamlessly with the runner's motion stable and bounce-free, without constricting the waist or shifting out of place. Made of highly breathable stretch mesh, the fabric is airy and quick drying, even after getting soaked by sweat, providing an uncompromised running experience. Weight: 65g (Size M) Compartments: 4