This versatile Stretch Strap is unique in that its two different materials allow a variety of stretches and contractions. The blue webbing side of the strap offers more resistance and less stretch, which is what's needed for static stretching. The black elastic side of the strap provides users with less resistance and plenty of stretch, ideal for dynamic stretching workouts. These elastic pockets along the length of the strap help to gradually stretch your muscles. It's this unique combination of materials that allows for additional benefits. When the user elongates an elastic loop by stretching muscles, then pulling the webbing strap, they are able to achieve an isometric contraction. The strap is designed for facilitated stretching that uses isometric contractions to achieve greater flexibility than from static stretching alone. At 66" long, this strap has plenty of space for users to exercise, improve their range-of-motion, gain flexibility and track progress of their work. Change the pocket being gripped and you change resistance, making the same exercise you just did easier or more difficult. With the included manual, users are guided in the proper technique to stretch their thighs, calves, hips, back, hamstrings, shoulders, arms and even toes. The strap is also ideal for yoga. The strap features elastic hand, foot and finger pockets at various lengths that allow users to ease into a stretch as well as change difficulty by simply sliding up or down to the next pocket. Portable, lightweight and easily foldable for storage or travel, the strap allows you to workout anywhere and everywhere. Indoors or out, home or away, everywhere is a good spot for a stretch. Designed with safety and comfort in mind, the Stretch Straps are Latex-free, powder-free and scent-free. They are machine washable, soft to the touch, won't chafe the skin or get caught on hair or clothing.