Quad Lock Run Kit for iPhone 6 Plus / 6s Plus The Most Comfortable & Convenient iPhone 6 Plus/6s Plus Sports Armband. Low contact with skin reduces sweat. Patented dual-stage locking mechanism ensures your phone stays securely on your arm Ideal for tracking your fitness via apps like Strava, easy access to music, and never missing a phone call or text message again Fully adjustable nylon lycra armband will fit any arm size with circumference 17-38cm or 6.5-15 inches Run Kit includes Sports Armband, and Slim &Protective Case for iPhone 6 Plus/6s Plus. Case is compatible with all Quad Lock Mounts & Accessories