This Gym Mate Magnetic Sleeve for water bottles attaches magnetically to any metal surface. It keeps your water bottle conveniently within easy reach and off the floor. No need to bend down to it pick up. This pouch holder is not just for your water bottle. You can store keys, cards, headphones, and even a cell phone in the accessories pockets! The phone pocket is see-through, so you can see and control it easily without taking taking it out. It fits most bottles with sizes ranging from 16oz to 32oz, and the cell phone pocket is large enough to accommodate large phones. Gym Mate Magnetic Pouch is designed for both men and women looking to add a little more convenience to their workout experience. The durable neoprene fabric will stand the test of time and protect your phone and accessories from water damage. Enjoy your workouts, stay hydrated and never leave any of the accessories behind with Gym Mate Magnetic Pouch!