5-Band Set of 100% Natural Latex Resistance Bands.Lose Weight, Build Muscle and Gain Strength with Undersun Resistance Bands. Each loop resistance band is constructed with a durable seamless design to resist breakage and provide maximum results that you can take anywhere. We want to keep the planet green, and that's why all Undersun Resistance Bands are made of eco-friendly 100% Natural Latex.The 5-Band Complete Set includes 5 different levels of resistance from X-Light, Light, Medium, Heavy and X-Heavy. Buying the set is a great value and also includes a FREE 30-DAY Trial of either the TA2 Muscle Building Program or the TA2 Weight Loss and Body-Toning Program.