Alpha Brain Golden Ticket Sweepstakes -- Learn More
Alpha Brain Golden Ticket Sweepstakes -- Learn More
Learn More

HydroCore Bag is rated 4.8 out of 5 by 31.
Rated 5 out of 5 by from Excellent little thing This thing feels durable and sturdy and is not at all uncomfortable; it's very forgiving and easy to master
Date published: 2020-01-12
Rated 5 out of 5 by from Phenomenal piece of equipment! This thing is so extremely diverse it’s unbelievable. I have never worked with something that was so effective for so many different things in my whole life. I see it almost like a kettle bell, but the lack of stability really lends a hand to developing your core, and balance in your muscles. It takes time to get used to and I’m not even quite there yet. A little bit of background, about seven years ago I went from 221 pounds down to 163 in about a 3 month period with the typical lifting and cardio that were fed, I lost track and ended up getting my weight back up to 235 the thing about it though. Looking at my body differently thinking about overall composition, overall strength etc... is never done much for it, and I think this tool is going to relieve me of that, I see where this will help with my under developed rear delta, I see where this will help me regain the flexibility in my shoulders, my hips, and strengthen my core, obviously it’s not my only tool but! I think it’s the most important one in my shed, this is the tool that I think will get me the body composition I’m looking for. It’s well built, thick plastic, double seals, the straps are attached so well I don’t see them breaking, sealed metal rings, high quality rope, this thing is quality and it will help you crush your goals without a doubt.
Date published: 2020-01-09
Rated 5 out of 5 by from Buy one Great product.its a must. The core workout is intense
Date published: 2020-01-08
Rated 5 out of 5 by from Excellent piece of equipment Loving this new addition to my onnit collection. Great quality like all onnit products. Fun to use and gives a great workout. Looking forward to learning new exercises.
Date published: 2019-12-31
Rated 5 out of 5 by from The HydroCore is my new favorite training tool. This is my new favorite tool. It is truly a full body workout. It is fun to explore new ways to move with the HydroCore. Small changes on how you hold it makes a big impact on how you feel the resistance. One tip I would like to share is make sure you attach the rope handles properly. You will need to remove a rubber piece and zip tie from the end of the rope handles before you attach them to the bag.
Date published: 2019-12-30
Rated 5 out of 5 by from Quick Review It's great, it's versatile and it's much more fun than other work out equipment. I really enjoy using it and it covers a spectrum of core workouts
Date published: 2019-12-29
Rated 5 out of 5 by from wonderful, demanding and fun training Very good and hard traning. It has a lot of uses and combinations
Date published: 2019-12-24
Rated 5 out of 5 by from HydroCore Bag Whether you're looking for a funtional training, a straight up beast workout, or in my case, mma conditioning tool. This is it. Super versatile and high quality material. I've already got 3 for my gym. Will be getting more soon.
Date published: 2019-12-08
  • y_2020, m_1, d_16, h_18
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.4
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_30
  • loc_en_US, sid_HydroCore_Bag, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_onnit
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getContent, 134.15ms
  • REVIEWS, PRODUCT

Keep-It™ Money Back Guarantee
We’re confident you’ll love your Onnit supplements. If the product doesn't perform for you, however, we’re not gonna play games with you. Order any of our entry size supplements, and if you don’t like it, you can keep it! Notify our team, telling us why it wasn't a fit for you, and we’ll get you a refund right there on the spot - no return necessary. We just ask that you try it out for at least two weeks to give it a fair shot.
Our Keep-It™ guarantee is valid for the first-time purchase of a formula, and redeemable up to three months (90 days) after the purchase date. Multiple bottles, foods, apparel and gear do not fall under this guarantee, however, they may be applicable for return. Fitness equipment, personal care products, knowledge purchases, digital products, and DVDs are not eligible for return or refund. For more information and a full list of products that qualify, visit our Keep-It™ page. Further details can be found on our Refund Policy support page.
Military & First Responder Discount
In thanks to military and first responders, we're extending a 15% discount on all products purchased at Onnit.com.
To qualify, just verify your status during checkout on the payment step. We verify through ID.me, our trusted technology partner for secure digital identity verification. (Learn more)
After verification once, you should have the discount auto-apply on that and all future orders.
Please note that this discount cannot be combined with other coupon codes.
If you have any questions or issues with the verification process, please don't hesitate to reach out to customer service.
* US Military members, please choose United States as your destination country when creating your customer profile, as this will ensure your package ships via USPS and that you are not given international shipping rates.
Subscribe & Save 15% now
With a subscription, you'll get your favorite Onnit products whenever you want, at 15% off. All automatic, worry free, and with our same great money back guarantee.
Cancel, pause, or adjust your order at any time, hassle free. Your credit card will only be charged when your order ships. The discount applied every time is 15% off. Since it would be weird to subscribe to a kettlebell, the subscriptions and subscription discounts are only for things you'll need often, like supplements, foods, and personal care items.

Secure Shopping

We implement a variety of security measures to maintain the safety of your personal information when you place an order or enter, submit, or access any information on our website. We incorporate physical, electronic, and administrative procedures to safeguard the confidentiality of your personal information, including Secure Sockets Layer (SSL) for the encryption of all financial transactions through the website. We use industry-standard, 256bit SSL encryption to protect your personal information online, and we also take several steps to protect your personal information in our facilities. For example, when you visit the website, you access servers that are kept in a secure physical environment, behind a locked cage and a hardware firewall. After a transaction, your credit card information is not stored on our servers.