Custom Design for Perfect Fit Introducing the Tumbler Holder, a custom-designed accessory that ensures a perfect fit for your Stanley 40oz Tumbler without compromising the drinking experience. Whether you're hiking, camping, or just enjoying a hot or cold drink on the go, this holder is the perfect companion Premium Quality Materials and Precision Stitching Crafted from high-quality neoprene with precision stitching, this bottle holder offers exceptional protection for your Stanley 40oz Tumbler. It prevents scratches and drops, is waterproof and shock absorbent, and remains comfortable to the touch, providing long-lasting durability and reliability Multi-Functional Bag Design The holder features large capacity pockets, allowing you to store your phone, credit cards, keys, cash, headphones, and other everyday items with ease. This eliminates the hassle of carrying extra bags during activities like hiking, biking, running, and working out, keeping your essentials close at hand Adjustable Shoulder Strap with Hook Design Equipped with a removable and adjustable padded shoulder strap, the Cup Sleeve can be easily adjusted between 27" and 52" to fit a wide range of body shapes. This makes it ideal for both everyday use and outdoor activities, providing versatility and convenience Easy to Clean and Maintain The neoprene material used in the water bottle carrier bag allows for easy cleaning. You can simply hand wash it or toss it in the washing machine, and it will be ready for your next adventure in no time. This hassle-free cleaning feature ensures that your carrier bag remains pristine and ready to accompany you on all your outdoor activities