This stylish water bottle sling is perfect for the gym, walks, or hikes, with a front zip pocket for your phone and a side opening for easy access to essentials. The built-in magnet attaches to metal gym equipment, keeping your items secure, while offering hands-free convenience for your gear, cards, and keys. This stylish water bottle sling is perfect for the gym, walks, or hikes, with a front zip pocket for your phone and a side opening for easy access to essentials. The built-in magnet attaches to metal gym equipment, keeping your items secure, while offering hands-free convenience for your gear, cards, and keys. BÉIS devises practical luggage for all occasions — from traveling to and from class, work, or the gym to wandering the globe, every piece is crafted to accompany you along your journey. Founded by excursionist and “Pretty Little Liars” star Shay Mitchell, the durable products inspire a shared affinity for adventure and self-fulfillment as well as an appreciation for prudent organization.