Rated 5.0 from 15,000+ Customers
CastleFlexx is a USA owned and globally patented mobility device trusted by professional athletes, physical therapists & thousands of customers around the world.
Whether you are dealing with Plantar Fasciitis, Hip issues, Sciatica, or just want to stay agile and mobile, the CastleFlexx can be used for upper & lower body stretching.
"I own a few of these (CastleFlexx) and my body has never felt better."
- Evan Engram, Jacksonville Jaguars
HSA/FSA-eligible
Waterproof Tactical Grip Handles - 100% silicone
Weighs Less Than 1lb
USA & Veteran Owned - 4 Week Return Policy
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Free 3-5 Day Shipping
Buy 2, Get 20% Off
HSA/FSA Eligible
Free 3-5 Day Shipping
Buy 2, Get 20% Off
HSA/FSA Eligible
How Many Ways Will You Benefit?
Relieves Tension & Boosts Flexibility
CastleFlexx targets the entire posterior chain of the lower limb, mobilizes the soft tissues of your toes, foot, calf and hamstrings, and creates fascial and nerve tissue release that improves issues related to lower back pain and herniated discs.
“After just three days, I have radically increased the flexibility in my calves and hamstrings, and hip flexors. The device looks so simple and is so worth it. it's my go-to stretching tool each morning.”
Brian
Prevents & Treats Injury
Harrison Bader, MLB Golden Glove Winner and center fielder for the New York Mets, used CastleFlexx to heal his plantar fasciitis in only 2 weeks. The CastleFlexx allows you to pull all your toes back into dorsiflexion, which elongates and helps heal your plantar fascia, which connects to the front of your toes. This increases blood circulation in your body which raises blood oxygen level and leads to healing.
"So happy to be a part of the CastleFlexx family"
Harrison Bader - New York Mets.
Fights Aging Muscles
As we age, our bodies gradually lose the suppleness that youth affords us. It's not merely about maintaining flexibility; it's an essential ritual to ensure our joints remain lubricated, our movements fluid, and our posture upright.
“Castleflex has changed my life. I’m 65 and I will be using mine forever! It has really helped with lumbar and sciatic pain; but mostly because I feel so much better when I am limber.”
Martha
Strengthens Your Body
Stretching plays a crucial role in strengthening the body by enhancing flexibility, which is key to performing physical activities with greater ease and less risk of injury. When muscles are well-stretched, they become longer and more elastic, allowing for a higher degree of movement around joints.
“This is an EXCELLENT tool! It is an absolute game-changer. Before I get out of bed in the morning, I stretch each leg for 90 seconds and it changes my outlook on the day. Love this and I highly recommend it.”
Roopa
”I’ve never gotten a stretch like this. The stretch is so much better and deeper than anything else I’ve used. Great design and amazing quality”
Robert
Why CastleFlexx® Is Different
Hammock Stretch For Plantar Fasciitis
CastleFlexx® is the only device with a unique patented "foot hammock" that is completely velcro free. Our foot hammock gives you the ability to fully flex the toes back, resulting in a stretched plantar fascia.
“As a 59 year old plumber with flat feet, I’ve had a lifetime of sore feet and chronically tight calves and hamstrings. Castleflexx has been a blessing and godsend for me!”
Jeffrey
Compact
Rolls Up For Easy Access
No need to store awkward bands or devices that take up space and end up getting tangled. CastleFlexx® rolls up neatly for storage, and can be ready tor use in seconds.
“Super happy with my CastleFlexx - it’s so convenient! I love to take it on hikes and it allows me to walk father and hike multiple days in a row.”
Jess
Ergonomic Design, Soft Handles & Fabric
CastleFlexx® is velcro-free and does not require any strapping in or out. CastleFlexx® has a patented handlebar with optional magnetic weights that provides a controlled comfortable stretch and it wont slip out of your hands like rope straps can.
“The build quality of this is amazing. The bar is heavy, smooth, and looks like a piece of Apple kit. The fabric is soft and dense, and the foot pocket is so comfortable.”
Jesse
“Worth its weight in gold. I use mine everyday, twice a day and I feel more relaxed, looser and ready to tackle what’s ahead. It’s simple, but it works!”
Dalfim
Loved By Pros & Recommended To You
We use it with all our patients
The CastleFlexx is a great tool for hip mobility, hamstring tightness, tendinosis and plantar fasciitis. It's one of the best stretching devices out on the market today! We use it with all of our patients here to help improve their quality and treatment plans.
Dr. Rachel Skolnick
DC, BS. Chiropractor
A revolutionary product for mobility
Are you ready to feel the best you've ever felt? CastleFlexx is a revolutionary product that helps you become more mobile, more flexible and alleviate chronic pain in a way I never thought possible.
Bari Newman
Registered Yoga Teacher
THE functional stretching tool
Unlike isolated stretching, Castleflexx stretches the entire posterior chain of the lower limb making it THE functional stretching tool on the market.
Official Team Chiropractor of the Atlanta Braves
Dr. Hamid Sadri
Chiropractor
See all reviews
Simply The Best Way To Stretch
Premium quality construction
No rope burn
Patented hammock design
Adjustable materials
Exercises biceps
Ergonomic materials
DIY Options
Generic Bands
FAQs
Got a question? We've got the answer.
Why is CastleFlexx used by so many professional athletes?
Castleflexx is used by the Pros across many different sports from golf and tennis to soccer and football. The athletes report they are “able to improve flexibility which increases power as well as reduces their odds of incurring injuries.” Baseball players are seeing improved velocity and spin rate to their pitches and runners are seeing faster times and a quicker recovery between races.
Each sport finds different benefits of Castleflexxing regularly but all seem to agree on one thing, that “it’s the most effective and unique stretch and full body strengthening device they have ever experienced.”
How is this better than typical stretch straps?
CastleFlexx is the only device with a weight assisted mobility bar as well as a unique patented "foot hammock" that is completely velcro free. Our foot hammock gives you the ability to fully flex the toes back, resulting in a stretched plantar fascia. It is truly one of a kind. Fasciial slips insert into all phalanges so it is important to have the toes stretched actively into extension as the foot is pulled into dorsiflexion.
Simply put, a stretching strap does NOT achieve this. Furthermore, stretch straps also lack the other components that make CastleFlexx so unique such as the ability to use the weighted mobility bar to improve core strength which is important because it takes stress off of your lower back.
I’m over the age of 65 and have arthritic hands... will this work better for me than a stretch band?
Based on feedback we have received over the years from the 65-85 age demographic, gripping and pulling a rope was found to be very stressful on the hands and fingers, especially for those with arthritic hands and arms. In addition, CastleFlexx is completely effective when utilized in a seated position, which is great for those who have injuries or other issues that may prevent them from laying down the way they would with standard stretching.
Another bonus - you do not need to bend forward and compromise your back to attach straps and secure your foot such as required with other typical stretch devices.
I'm sure I'll love my CastleFlexx, but if I don't, can I send it back?
If you don’t agree that it’s the most effective, multifunctional stretch and core strength device you have ever tried then gift it to someone who has lower back issues or just send it back within 10 days of receipt.
We will be sad that it didn't change your life, but we will be happy to fully refund you for the cost of the product. You only pay for the shipping each way.
