1With the waist belt, it can enhance your workout by helping to improve thermogenic activity. It can increase the core temperature during exercise and improve sweat production, burn more calories. Instantly creates a slimming effect. 2Made of good quality neoprene and OK cloth, skin-friendly, durable, wear-resistant, breathable and comfortable to wear. Unique nano-silver surface design, more efficient to sweat. Easy to clean, prevents bacterial growth and reduces stink. 3Designed with a phone pocket in front, it is convenient to take the phone and enjoy music and avoid to miss the important phone calls during exercise. 4Hook & loop design, easy to fasten and loosen and convenient to put on and take off. It is easy to roll up for easy carrying and storage. 5The waist trimmer is ideal for weight training, barbell training, Yoga, running, biking etc. In addition, you could also wear it while doing housework or any leisure time.