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Description
The O₃ is the flagship Kewlus cobra bag system, combining the fast, crisp rebound of the Striker (KS3) Spring with the exceptional rigidity of the handcrafted OctaBase and Stainless Steel Mast. Built for demanding home training and real box...
Reviews
5.0
10 ratings
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Great product!
Every component is super high quality. I'd put this up against anything I've found at a gym, and expect it will last a very long time. Super stable with sandbags and olympic weights, and the speed is tunable from beginner to "Ryan Garcia demo video" by adjusting the red and black bars and tensions on couplings. Awesome product!
A
Alex · March 27, 2026
Best Cobra bag I've ever had.
This is the best Cobra bag that I have ever had, the set up was very easy and it met all my expectations.
It is such a well made bag, and it has definitely become one of my main staples in boxing training to give me that edge over my opponents!
This was well worth my money and I highly recommend others to buy this bag. 😃
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Jason · January 9, 2026
Incredible piece of kit and well worth the investment!!
The O₃ Cobra Bag is an outstanding piece of kit! Built with premium materials and incredible attention to detail, its modular design sets it apart from other competitors.
Every component on the badboy can be adjusted, swapped, or upgraded, allowing for full customization and long-term use. The wooden base is sturdy, the spring is highly responsive, and the overall build feels professional-grade.
Beyond the product itself, Reedy’s customer service is exceptional; he’s responsive, genuine, and goes above and beyond to help with setup, tips and any questions about the gear.
It’s a thoughtfully engineered, durable, and versatile cobra bag that delivers real value and performance, that'll last a lifetime.
Don't waste your money on cheaper alternatives!