Used this only 3 times. I am older and the weights were just too heavy for me. I was worried about injuries. I went back to my hand weights. The vest has been gently washed 2- times per the directions . The Hyperwear Hyper Vest Fit for women is a medium-sized weighted vest designed for gym & training, weight lifting, and running & jogging. Made from a durable nylon poly blend material, this black vest features adjustable weights up to 10 lbs, providing a customizable workout experience. The Hyperwear brand is known for producing high-quality fitness equipment, and this vest is no exception, offering a comfortable fit for women looking to enhance their strength and endurance during workouts.