Want to add that little bit more to your training program. Is performed to increase the strength and mass of muscles, bone strength and metabolism and can also contribute to better cardiovascular health.These Atreq Weighted Vests are perfect for plyometrics, speed, agility, endurance, aerobics and strength overload without affecting biomechanics. Features Ideal for speed, agility, plyometric and strength training One size fits-all Double closure design Constructed with reinforced nylon mesh for breathability Great mobility due to an even weight load (upper body) Weights are loaded at top body front and back for optimum performance Sand filled packets fit into internal pockets for comfort Secure adjustable weightpockets making it easy to adjust the weight load Size: Available in 9kg and 18kg Colour: Black Resistance exercise is an effective way to lose and maintain weight. Studies have also shown that resistance exercise may be more effective than aerobic exercise in improving body image and self esteem. One reason for this is that resistance training provides more immediate results. After training for a short period of time, you will notice that your muscles have grown and become more toned.