BlenderBottle Sport Insulated Stainless Steel Shaker Bottle with Wire Whisk, 24-Ounce, Grey – Protein Shakes & Hydration for Athletes & Fitness Enthusiasts, Easy Mixing, Keeps Drinks Cold, Lockable Lid

Perfect bottle - love the tapered design as it fits in almost any backpack or tote bag cup sling or cup holders in vehicles. From what I've read, the stainless steel is non-toxic and holds us well. The insulation is great - will keep ice for a day. I've only used the blender ball a couple of times but that works well, too. The lock is genius - no leaks - and the loop for hanging from a carabiner is super sturdy. So pleased with the Blender Bottle.

This is my favorite protein shaker cup. I’ve had dozens of the plastic versions and have ruined them by leaving them in the car in the summer. There’s only so many times you can soak plastic cups in the sink with bleach and hot water and soap before you start worrying about the plastic bleaching into your beverage. The stainless steel is great. There’s no smells and it’s very easy to clean. Works great as a water bottle and keeps your eyes cold for a long time I would order another one.

Best purchase! Bought these as a gift for my cousin who enjoys drinking her protein with milk. She loved it and raved about it so much that I got two more for my partner and I. The insulation keeps my water cold for a long period of time. I've had cold water stay cold a full 24 Jrs but haven't tried longer than that. I throw mine into my bag and love that it gives you the option to lock the lid so that I'm not worried about spilling. Easy to use, classic design, does what its meant to do, and is offered in a variety of nice colors!

I’ve been using the BlenderBottle Stainless Steel Tumbler for a few weeks now, and I’m seriously impressed. Whether you’re into smoothies, protein shakes, or just need a reliable tumbler for daily hydration, this is the best tumbler I’ve used. Here’s a breakdown of why I love it:🧊 Superior Insulation – Keeps Drinks Cold (or Hot) for HoursThe double-wall insulation in this tumbler is a game-changer. My smoothies stay ice-cold for hours, even in hot weather, and my warm drinks, like coffee or protein shakes, stay nice and warm. No condensation forms on the outside, so I never have to worry about wet hands or spills. This tumbler keeps everything at just the right temperature!🌀 BlenderBall™ Whisk for Smooth, Lumps-Free DrinksThe BlenderBall™ whisk works wonders to make sure every drink is perfectly smooth. I’ve blended everything from protein powders to frozen fruit, and there’s never any clumping or lumps. It’s super easy to use—just add your ingredients, shake, and you're good to go!💪 Durable, Leak-Proof DesignThis tumbler is tough. The stainless steel construction feels premium and is built to last. I’ve dropped it a couple of times, and it didn’t even dent! Plus, the leak-proof lid is a lifesaver. I’ve tossed it in my bag or backpack without worrying about any spills or leaks.🏋️‍♂️ Perfect for Active LifestylesWhether you’re at the gym, running errands, or on a road trip, this tumbler is the perfect companion. The ergonomic design is easy to hold, and the wide mouth makes it simple to add ice, protein powder, or other ingredients without making a mess. It even fits perfectly in my car cup holder!💧 Easy to CleanCleaning is a breeze! The stainless steel doesn’t absorb odors or stains like plastic, so it stays fresh. It’s also dishwasher safe, making it super easy to clean after every use. No more worrying about stubborn residue or funky smells!🎨 Sleek, Stylish DesignThe BlenderBottle Stainless Steel Tumbler looks great! The sleek, modern design comes in a variety of colors, so you can pick one that suits your style. It’s just as stylish as it is functional, whether you're at the gym or at work.Pros:Excellent insulation keeps drinks cold or hot for hoursBlenderBall™ whisk ensures smooth, clump-free shakes and smoothiesLeak-proof lid is perfect for carrying it on the goDurable stainless steel construction that’s built to lastErgonomic design fits comfortably in hand and cup holdersDishwasher safe for easy cleaningSleek, modern design that looks great anywhereCons:BlenderBall™ whisk can get stuck at the bottom sometimes, but a quick shake or tap fixes it.Slightly heavier than plastic alternatives, but this is expected with the stainless steel material.Final Verdict: ⭐⭐⭐⭐⭐ (5/5)The BlenderBottle Stainless Steel Tumbler is hands down one of the best tumblers I’ve ever used. It combines premium materials, excellent insulation, and practical features like the BlenderBall™ whisk and leak-proof lid. It’s the perfect choice for anyone who wants to keep their drinks at the right temperature and blended to perfection — all while looking sleek and stylish. I highly recommend it!

Bottle is awesome! Metal keeps drinks somewhat cold, perfect for a protein. Durable too, easy cleanup.

I gave it 4 stars because the seal in the lid comes loose and isn't easy to get back in place and to get it to stay there. Otherwise, a great size,don't half to refill that often it 20+ oz. Easy to use, keeps drinks cold. The hoop on top is a great way to carry it or slide it onto something that it fits through. Quality is great except for the design of the seal which kept coming out of place after using it for awhile.

You can tell that the manufacturer of this product took the time to design it well. The quality is excellent, cleaning is a breeze, it's big enough to hold just the right amount of liquid, the mixing ball works perfectly (though I do recommend filling a little below the recommended fill line just so the ball can move around more), and I haven't had any issues with leakage because of the dual locking system.

While it seems we can never truly escape microplastics, we can do our best to minimize our exposure to them. It never really sat right with me that I was vigorously shaking liquids in my old, plastic shaker bottle multiple times per day. This stainless steel one from BlenderBottle was an economical upgrade. It's made with robust materials and has a great, secure lid. It's also easier to clean and doesn't hold on to strange colors and smells as much as plastic.What I didn't like as much is that the included stainless steel blender ball doesn't seem to get lumps out as well as plastic mesh in my old bottle.