12-pound non-adjustable weighted vest filled with iron sand for optimal weight distribution and durability - perfect for strength training, cardio, and endurance workouts High-performance recycled neoprene construction with reflective striping for enhanced visibility during outdoor activities and reinforced stitching for long-lasting use User-friendly design with detachable front zipper pocket and back mesh pocket for convenient storage of small essentials during workouts Breathable material maintains its rigid shape throughout training while providing flexibility and comfort for various exercise movements Secure fit with adjustable straps ensures the vest stays in place during walking, running, strength training, and other fitness activities while preventing unwanted movement