Train like a champion with the World's First Modular Cobra Bag
The Kewlus Modular Cobra Bag is fast gaining a reputation as the world's best reflex punching bag. World champion boxers are training with it. Now you too can experience the ultimate in reflex boxing training with a kit to suit your budget and training needs.
Let customers speak for us
from 227 reviewsThis is my third variation/ model of cobra bag from Kewlus and Reedy has made this the best one yet. Clearly made to be a high end and durable bag for both home and gym use. Parts are made of quality and the KS3 spring is very reactive with quick movement. The bag itself is made of genuine leather and easy to mount. The octabase is a great touch to allow the sand bags to sit on top and keep the bag in a firm position. My favorite feature is probably the addition of the Olympic weight sleeve. It allows you to slide the sleeve over the stainless base pole so you can add Olympic weight plates if needed. This gives you the ability to add extra weight to keep the base firmly planted. Overall very satisfied with my bag so far.
I did an extensive research before pulling the plug. This one is superior in every aspect. Very well built. Sturdy and stable ( with the sand and couple 45 plates ) unshakable. Incredibly easy to put together.
Now, the thing we use it for, the lunch and the bounce, it’s amazing. Great feedback and bounce.
I know as a consumer we feel safe knowing things that can be returned are safer but with this you wouldn’t want to return it even if that was an option.
Let me wrap it’s up by the customer service, you are not going to get a better service. Fast communication with care and genuine customer support.
I’ll buy it over and over if I have to.
Worth the investment.
Don’t hesitate to pull the plug. Everything about it is top notch.
By the grace of the Lord, I discovered Reedy Kewlus before I purchased a more expensive cobra bag! This bag is smooth, responsive and sturdy. The speed of the bag is super impressive. Very happy with my purchase.
I did some online research and almost purchased the Grodex Cobra Bag. I'm so glad I found the Kewlus Cobra Bag instead. I can't recommend the Kewlus Cobra Bag enough. The quality is top notch and very sturdy despite the modular design. I was expecting the product to be flimsy, but I couldn't be more wrong. I have practiced martial arts for over 10 years and can hit a bag with decent power. The Kewlus bag held up fantastic so far and rebounded quickly with the heavy duty spring. The Customer service at Kewlus is unparalleled! Reedy was very responsive to my inquiries even post sales. I won't hesitate to buy Kewlus products in the future for all the reasons mentioned. Awesome product! Thank you.
Really Light, well made and Super-Fast!!! Best Cobra Flex on the market!!! Our members love this bag, Everyone also loves the easy adjustments for various heights. I highly recommend this bag for home use and/or gym use. It will take your hand speed to another level!!!!
I had been searching for a cobra bag for some time, have used different ones in several gyms, none come close to the quality of the kewlus. I went for the k3 free standing with the base and sand bags. Very fast shipping to the USA, nicely packaged, easy to put together, the spring is excellent quality and the sandbags work exceptionally well negating the need to buy extra weights. I use this everyday to train and don't get bored! I will likely purchase the air free bag soon to add to the kit. I love supporting entrepreneurs like reedy. Great job!
This is the only modular Cobra bag. VERY quick and easy to set up, extremely fast spring and quality parts. I love this product, and the service and communication from Kewlus is exceptional. I highly recommend this product! I've tried several other cobra bags, this has been the best of the bunch.
First, great service from Reedy. Fast order fulfilment and shipping. Kit arrived in perfect condition. Second, extremely easy assembly and quality is excellent as advertised. Third and most important, performance of the Kewlus cobra bag is outstanding! Fast, responsive and with two 50 lbs bags of sand on the platform paddles, it's ROCK solid and doesn't not budge no matter how hard I hit it ( and I weigh about 205 lbs and boxing for 5 years). My main goal was to use this for head movement when training alone and the fully adjustable features allow me to get both fast return of the bag AND it will hit me hard in the face if I don't move my head!! This is no toy and it meets or exceeds the performance of much more expensive cobra bags
I love everything about this product. I’ve used a few other cobra bags, and this one is by far the best. The ability to make different modifications make it second to none.
The KS3 spring is just so incredible fast and has a really great rebound while still not missing out on reach, so it's perfect to work on my Philly shell.
The fact that the whole bag is modular makes it even better. I'm pretty tall, so I might replace the lower click mast with a galvanised pipe to use the shortest/fastest setting of the bag.
It's just a quality product and you can't anything better for this price, plus the customer service by Reedy is top notch.
I’ve wanted a reflex bag for years and was finally about to pull the trigger between a grodex or a fierce reflex bag.. Happened to stumble across Kewlus and saw that this new version dropped a few weeks ago. For half the price, this does EXACTLY what the more expensive ones do.. and the quality is THERE.
big respect to ya kewlus !
I have tried several different reflex bags. Some were very expensive. I sent them all back. The Kewlus bag is by far the best. Very stable and responsive. Provides a great workout!!
After looking around the Internet at cobra bags and solutions I came across Kewlus and Reedy’s YouTube channel. After seeing pricing and the modular design I pulled the trigger on a full kit with the KS3 and gloves and I’m blown away by the product, design, and usability. The modular design allows it to be easily portable and the performance is beyond. I’ve got 3 friends looking to purchase now as well. Cheers to Reedy for an amazing product and continued development.
It is definitely one of the fastest COBRA bags I’ve had . I’ve had ringside and title cobra bags also Amazon cobra for $260 dollar and the do not compare. It’s easy to take on the go to going to order more for gym
Amazing design and easy assembly! Extremely sturdy and is definitely built to last even through the most rigorous training sessions. Would definitely recommend to anyone looking for a cobra bag.
What customers think about the store
The store offers high-quality, modular cobra bags known for their responsiveness, durability, and customizability. Customers appreciate the affordability, exceptional customer service, and the ability to create personalized setups. The products cater to variou... The store offers high-quality, modular cobra bags known for their responsiveness, durability, and customizability. Customers appreciate the affordability, exceptional customer service, and the ability to create personalized setups. The products cater to various skill levels, enabling effective training for speed, precision, and overall fitness.
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100% Verified Reviews
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World's First & Only!
The Kewlus Cobra Bag is the world's first & only modular freestanding reflex punching bag that is also DIY compatible. Designed to meet the training needs of professional fighters, it also allows anyone to get started on a small budget. Many customers including pro fighters have compared it to other reflex bags and say it is by far the best in terms of quality, price and versatility.
Loved by Champions
Loved by boxing champions like Tim Tszyu and the McKenna brothers, and embraced by coaches like Paul Briggs, the modular Kewlus Cobra Bag is revolutionising reflex training and is fast becoming the go-to training tool for the top athletes worldwide.
On National TV!
I had the incredible opportunity to present Kewlus on Shark Tank Australia. Honestly, I’m still pinching myself because never in my wildest dreams did I think I’d be demonstrating my product on national TV, especially on Shark Tank!
Choose Your Kit:
Visit the Cobra Bag Kits page for help with choosing the kit that's best for you.
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O₃ Kewlus Kit
Regular price $450.00 USDRegular priceUnit price / per -
KS3 Kewlus Freestanding Kit
Regular price $360.00 USDRegular priceUnit price / per -
KS3 Kewlus Core Kit
Regular price $295.00 USDRegular priceUnit price / per -
Sold Out
KS2 Kewlus Freestanding Kit
Regular price $295.00 USDRegular priceUnit price / perSold Out
Try & Buy Locally
Check with your local boxing gym for a demo and to buy without paying for shipping.
Setup & Optimisation:
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Cobra Bag Customisation & Optimisation Instructions and Videos
Go ThereGet the most from your Kewlus Cobra Bag by setting it up with my tips. Included are details on increasing speed, height and improving performance.
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Make the Baseboard that's Right for You
Go ThereThe most common and reliable base solution is to make a baseboard. I cover all the options here, from a basic light weight baseboard to a thick "Stubby" with a double-deck setup.
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Increase The Height of Your Cobra Bag
Go ThereAre you over 6 foot tall and need a taller cobra bag? Here are some simple ways you can increase the height of your Kewlus Cobra Bag!
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Advanced Cobra Bag Setup
Go ThereGet the maximum performance and add mobility to your KS3 Cobra Bag with this advanced base setup.
Featured DIY Projects:
See All DIY Projects-
Make a DIY Cobra Bag!
Full InstructionsMake your own fast and powerful cobra bag that is better than many of the commercial cobra bags at just the fraction of the cost!
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How To Make a $10 PVC Kewlus
Full InstructionsThe original PVC and Pool Noodle Kewlus, which you can make from just $10!
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Make a Cobra Bag Baseboard!
Full InstructionsIf you have ordered the Kewlus Cobra Bag kit that includes the Multi Base, the best way to set it up is to make a baseboard for it.
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Make a Boxing Spar Bar!
Full InstructionsMake this smooth-spinning spar bar for learning to slip punches and improve your defensive skills.
What's a Cobra Bag?
The cobra bag is a type of reflex punching bag that incorporates a football-sized ball on top of a rod or pole that is able to flex back and forth. The cobra bag is one of the best training tools for boxing training. It's ideal for developing a high level of hand-eye coordination and defensive boxing skills. The interactive nature of the cobra bag makes it fun to train with.
New & Coming
O₃
Sporting the powerful KS3 Spring, heavy duty Stainless Steel Mast and the beautifully crafted OctaBase, the O₃ is the ultimate Kewlus design and engineering made for elite fighters and boxing gyms.
Stainless Steel Mast
The Stainless Steel Mast marks a new level of capability for the Kewlus Modular Cobra Bag intended for professional boxers and boxing gyms.
Olympic Weight Plate Sleeve
The Kewlus Olympic Weight Plate Sleeve allows you to use Olympic weight plates to greatly enhance the rigidity and performance of your Kewlus Cobra Bag.
Kewlus Red Bar
The Red Bar has been designed to increase the speed of the Kewlus Cobra Bag. It's specifically made for switching out the Click Bar in the top section of the cobra bag. The Red Bar is 3 inches shorter than the Click Bar and almost 1/3 of the weight, resulting in a much faster cobra bag.