[THE PERFECT FIT - Each Stanny Pack includes 2 adjustable elastic strap sizes providing compatibility with all of your favorite 18-40oz Tumblers - Stanley Owala YETI Hydro Flask Akisola & more! NON-SLIP - The silicone-backed elastic straps ensure a secure and non-slip fit preventing your Stanny Pack from sliding down the bottle. CONVENIENT STORAGE - The Stanny Pack offers ample space to hold your everyday items such as cards chapstick keys and headphones keeping your hands free and your essentials within reach. DURABLE & RELIABLE - The Stanny Pack is made with ripstop nylon known for its strength and resistance to tearing and high-quality silver metal accessories providing durability for your on-the-go lifestyle. VIBRANT & BRIGHT - The Stanny Pack was designed for those who want to add a pop of personality and color to their everyday routine. With bright and vibrant colors the Stanny Pack allows you to showcase your personal style everywhere you go.]