Vivo S1 Pro Back Cover by KEYCENT Stylish, Ultra Slim, Sleek and Light Weight Design Snap on Case Protect your phone from scratches and bumps,Image Full Wrap Finish (Side Edge & Corner) Tight and Firm fit for perfect grip and support. Gym, Fitness, Workout, Stop Wishing Start Doing, Motivation, Sports Specially Designed for Your Vivo S1 Pro