The BLACKROLL® RESIST BAND was developed to make recent innovations in modern athletic training available to everyone. These BANDS meet professional standards, but are perfect for amateurs as well. RESIST BANDS are strong, elastic, and tear-resistant, but are still pleasantly soft to the touch. Two flexible Velcro fasteners on the band allow quick fastening of the band around the hips for modern acceleration, spring, and running technique training without cutting into the skin. No unpleasant pulling on the skin, thanks to skin-friendly textiles.