Adjustable Silicone Water Bottle Carrier Grip Band Strap Handheld Bottle Ring for 20Oz Sports Bottles Lightweight Hydration Accessory for Running Hiking Cycling Outdoor. Core Functionality: the Water Bottle Carrier Grip Band Holder Strap securely fits most sports water bottles with its stretchable silicone design, providing easy and hands-free hydration during biking, jogging, gym workouts, and outdoor activities.