Water Bottle Holder with Strap, Water Bottle Carrier Bag with Phone Pocket, Shoulder Hand Strap Insulated Neoprene 40 oz Water Bottle Sleeve for Walking Hiking Camping Gym, Milky white

I recently got the HUAOUNUO Water Bottle Holder with Strap for my Stanley 40 oz tumbler, and it's been a fantastic accessory. Here's why it deserves five stars: Perfect Fit: The design is specifically tailored for the Stanley Quencher H2.0 40 oz and Stanley Adventure Quencher 40 oz tumblers. It fits snugly, making it easy to keep the tumbler secure even in a car cup holder. High-Quality Material: Made from premium neoprene, this holder provides excellent waterproofing, shock absorption, and is soft and lightweight. It protects the tumbler from collisions and scratches without making noise when set down on surfaces. Functional Design: The adjustable shoulder strap is a game changer. It can be extended from 27.5" to 50", making it suitable for various body types. Plus, the two front pockets are great for carrying essentials like smartphones, cash, and keys. Versatile Use: This holder is not just for carrying water. It’s perfect for outdoor activities like walking, biking, camping, and hiking. It’s also ideal for daily commutes or gym sessions. Stylish and Practical: It looks great and is incredibly practical for daily use or as a gift for anyone who owns a Stanley 40 oz tumbler. This water bottle holder enhances the functionality and style of your Stanley tumbler. Highly recommended for its quality and utility!

Quality nice overall. Fits the 40oz Stanley perfectly. The strap is held on by plastic clips, so if the cup is full and your really swinging it around, I worry they wouldn't hold up very long. Fits a phone with room to spare. I plan on using this for the gym. Will have no problem fitting my keys, card and phone. The only complaint is that it doesn't fit in my cup holder, so I'll have to take it on and off in the car.