Lightweight: Weighing only 150 grams, this running vest is made of soft neoprene and breathable mesh to ensure airflow and keep sweat away from the skin. Stay cool, dry, and comfortable from warm-up to long runs. Zero-sway stability: This unisex hydration vest features an elastic waistband that conforms to your body and minimizes sway. The adjustable chest strap with buckle ensures a secure fit and provides a stable and comfortable wearing experience throughout your run. Spacious storage: This vest provides easy access to music/photos. Two front pockets can hold energy gels, keys, and other essentials, while the rear mesh pocket can hold a towel or other gear. Safe and visible: Multiple reflective details on the front and back enhance visibility in low light, ensuring safety during exercise. This reflective running vest is perfect for cycling, jogging, or walking, and is also a thoughtful gift for outdoor enthusiasts. Note: 1. Please allow slight errors due to manual measurement. 2. Due to differences in lighting and screen, the color of this product may differ slightly from the picture. 3. Packing list: 1 vest (excluding water bottle; phone pocket; phone pocket drawstring)