Lightweight breathable design This running vest is built from a high density nylon-polyester blend for breathability and reduced pressure during training. Weighing only 0.16 kg, it promotes air flow and moisture control for a comfortable run. Large capacity and organized storage A whistle is integrated into the shoulder straps for emergencies. The vest features a large main pocket with multiple internal storage pockets to securely store a variety of items and keep them easily accessible. Unrestricted movement Designed for all body shapes, this unisex vest uses two adjustable chest straps and side straps to deliver a precise fit with minimal restrictions and enhanced comfort during activity. Enhanced night safety Reflective strips along the shoulders and back increase visibility in low light or nighttime conditions for added safety. Practical use scenarios - Long distance runs or training sessions where lightweight storage for items like keys, phone, and energy gels is beneficial. - Trail running or mixed terrain where quick access to essentials is needed without bulk. - Early morning or evening workouts where increased visibility improves safety.