Uniform size with varying weights enhances training effectiveness. This weighted vest adds extra resistance, helping you build strength and endurance. Premium materials - Durable neoprene fabric and weighted iron pellets with double stitching ensure it can withstand high-intensity training. Even weight distribution - Upgraded iron pellets ensure even weight distribution, improving training efficiency and preventing sports injuries. Reflective strips - Front and rear reflective strips enhance visibility in low-light conditions, making nighttime running or cycling safer. Adjustable elastic shoulder straps - Adjustable shoulder straps fit various body types and chest sizes for men and women. Note: There may be a slight odor upon opening the package, which is normal please air dry in a ventilated place for 1-2 days. Weight: 6.2 lbs (approx. 2.9 kg)