Top Quality Materials, adopts excellent neoprene fabric with iron ball and iron sand, which is super soft and helps to concentrate the weight in the chest and upper body during training and builds core muscle strength. 2 Adjustable Straps & Reflective Stripe, there are 2 adjustable straps for the weighted running vest to prevent slipping or sliding more effectively during exercise, which also ensures flexibility of users with different bust size. The reflective stripes on both sides of the vest will reflect lights once headlight finds them, safeguarding safety for night workout lovers. We designed this weight vests for men, women or kids with an adjustable front belt and soft neoprene material for comfort, which can be well adapted to different body types. Adjust the bottom straps to fit any users trying to keep the vest nice and snug to their body. Mesh pocket on the back of this workout equipment saves room for you to add extra weight pockets if needed, the well-designed mesh pocket on the back of the weight vest for workout is convenient for storing belongings such as keys, smart phones & headphones or adding weight if needed. Weights workout equipment is perfect for cardio and weight training, increases the intensity and efficiency of your workout, it’s also good for strength training, workout, crossfit, fitness, walking, running. Men and women even wear vest for stairs climbing. This weight vest will help you improve cardio conditioning and body strength, bring more fun to your fitness. Colors logos and color box all could be customized, normal weight 3kg,5kg,8kg,10kg,12kg,15kg,4lb,6lb,12lb,16lb,20lb,25lb,30lb. In addition to solid colors, we also have a variety of design patterns, they are fashionable and beautiful, making your choice more colorful, and oem design is also ok .