The benefits of including resistance bands in your training program are undeniable. They are utilized by bodybuilders, powerlifters, CrossFit athletes, and fitness enthusiasts around the world to increase athletic performance. Resistance bands are an effective training aid and they can be utilized for pull-up assistance, warmups, stretching, assisted bodyweight exercises, variable resistance in conjunction with free weights, and injury prevention. Iron Infidel&';s resistance bands are made using a layered manufacturing process. This is a more costly process but results in bands that are 350% more durable than most bands that utilize the standard (aka cheap) manufacturing process. You can buy our bands in a bundle or individually. Available in gunmetal black or tactical colors. Check your options below. And don&';t forget to add a set of handles to your order! Colors/Sizes: Coyote (XX-Small): 5-15lbs Tundra (X-Small): 20-35lbs OD Green (Small): 30-60lbs Flat Dark Earth (Medium): 40-80lbs Ranger Green (Large): 50-120lbs Khaki (X-Large): 60-150lbs 5-Band Set Colors/Sizes: Tundra (X-Small): 20-35lbs OD Green (Small): 30-60lbs Flat Dark Earth (Medium): 40-80lbs Ranger Green (Large): 50-120lbs Khaki (X-Large): 60-150lbs WARRANTY: All bands come with a 1-year limited warranty.