The Runtastic Armband Extension a great add-on for those with larger arm sizes, for users exercising while wearing extra apparel, and for individuals who prefer to wear the Runtastic Sports Armband on the wrist. The extension makes it possible for your smartphone to fit well and stay put during exercise, even over clothing layers. The product is lightweight, elastic, and comfortable, boasting protective neoprene construction. Compatible with the Runtastic Sports Armband for smartphones.
