1.Premium Elastic & Breathable Fabric-Our exercise bands are made from soft, skin-friendly fabric that won’t slip up or down roll during exercise and soft knitting surfaces don't rub against your skin. They are breathable, anti-slip and anti-roll up. 2.Perfect for Any Workout –The exercise bands are soft and non-slip, never slip or roll up when in use. It can stay put for a safe and comfortable workout such as stretch and strengthen hips, legs and thighs. Not only are these fitness resistance bands great for working out at the gym but also for use at home or everywhere else. 3.Set of 3 Resistance Levels -The fitness bands are divided into 3 different resistance levels: light, medium and heavy. Never worry that your hips are too elastic or too hard, you can easily switch between 3 levels at any time to find the most comfortable part to exercise. 4.Portable Design- Our resistance band is lightweight and comes with a storage bag for easy to carry. Portable design exercise band allows you can do exercise anywhere, such as home, gym, office, hotel, beach and travel,etc.