The Black9Lab knee sleeve was comfortable to wear when playing golf and didn't grip my knee too tightly. I recommend it to golfers with knee problems
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Review summary
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Shipping and delivery could have been faster. Product is fine. Good quality and nice appearance. Will see how it stands up over time. Thank you.
Company replied
Ordered 2 belts. Took a screen shot of order when i checked out. Never got an email confirmation of order, when I got to look up order the website says my confirmation number is "Not Found", but th... See more
Company replied
Great product, shipping sucked
Company replied
Company details
Written by the company
Back9Lab™ helps golfers play pain-free with products designed by golf physiotherapists and engineers. From knee sleeves to pain patches, every solution is built to relieve pain, improve comfort, and keep you playing the game you love.
Contact info
Lengelseweg 92-08, 7041DS, 's-Heerenberg, Netherlands
- Support@back9lab.com
- back9lab.com
3.9
Great
56 reviews
Replied to 100% of negative reviews
Typically replies within 1 week
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I order 3 belts from this company…
I order 3 belts from this company black, Gray and navy blue. they send me 3 navy blue belts; I have been sending them emails to support and they haven't responded to any of my emails. they give you 30 days to return the merchandise. i will never buy from them again. they suck.
17 March 2026
Unprompted review
Reply from Back9lab
Hi GLA,
We’re really sorry to read this, receiving the wrong items and then not getting a response is understandably frustrating.
There must have gone something wrong here, especially since you ordered three different colours and received the same belt three times. That’s not the experience we want for our customers.
Please contact us again at support@headcaddy.com
with your order number and email address, and we will immediately arrange the correct belts or a full refund, whichever you prefer. We’ll make sure this is handled properly and without further delay.
Once this is resolved to your satisfaction, we’d really appreciate it if you’d consider updating your review 🙏
Regards,
Back9lab
Incorrect Item Arrived. NO RESOLUTION
I ordered a belt in February and then emailed in and requested the colour was changed, I received an email confirming this had been actioned and when the belt arrived it was the completely wrong colour. I have still not had any responses to my emails about this or a replacement/refund. I would avoid ordering from this company as they do not offer any customer service/resolve any issues you may have.
4 February 2026
Unprompted review
Reply from Back9lab
Hi Sally,
We’re really sorry to read this, this is not the experience we want you to have.
There must have gone something wrong here, especially since your colour change was confirmed but not reflected in the final order. We completely understand how frustrating that is, especially combined with not receiving a response.
We do respond to every email within 24–48 hours, so it’s likely our replies didn’t reach you (please also check your spam folder just in case).
Please contact us again at support@headcaddy.com
with your order number and email address, and we will immediately send you the correct belt or issue a full refund, whichever you prefer, no delays.
We’re here to make this right. If we can resolve this to your satisfaction, we’d really appreciate it if you’d consider updating your review 🙏
Regards,
Back9lab
The shoes arrived wrong size and no response from any emails
Update, Back9lab came back to me eventually. I received a full refund for the inconvenience. Their sizing on their website is US and I ordered the size that google says convers to my EU size/uk size. But Back9labs converted them a size up . All good now .
I had ordered the shoes The shoes arrived . Look good and of reasonable quality .. but they are two sizes bigger than what I had ordered . I have emailed all of their listed addresses but have received no response after a few weeks - tried messaging them on their social platforms and also no reply .
They state a 30 day returns policy / but so far I’ve found this company to have a sales but no service ideology. Not a happy customer
5 February 2026
Unprompted review
Reply from Back9lab
Hey Des Faul,
We’re really sorry to read this, receiving the wrong size and then not getting a reply is understandably frustrating, and that’s not the experience we want you to have.
There must have gone something wrong with your messages reaching us or with our replies getting through. We do answer every email, but occasionally responses can end up in spam folders.
Please contact us again at support@headcaddy.com
with your order number and email address, and we will immediately arrange the correct size to be sent or issue a full refund, whichever you prefer. Of course, we’ll also make sure the return is handled properly.
We want to fix this quickly and make it right for you. If we’re able to resolve it to your satisfaction, we’d really appreciate it if you’d consider updating your review 🙏
Regards,
Back9lab
A bad start but things got better
The shoes I received did not match the marketing pitch.
**further update**
once i made contact with the correct person at Back9 Lab they acknowledged the issue and corrected the situation promptly.
18 February 2026
Unprompted review
Reply from Back9lab
Hey Michael,
We’re really sorry to read this and to hear how disappointed you are, this is clearly not the experience we want anyone to have.
We respectfully disagree with the idea that our shoes are generic or misrepresented, but what matters most here is that they didn’t meet your expectations, and for that, we apologise. If the product or our communication came across as dismissive or slow, then we’ve fallen short.
There must have gone something wrong in how this was handled after delivery. We’re a real golf brand based in the Netherlands, and we absolutely stand behind our products and our customers, even when things don’t go as planned.
Please contact us directly at support@headcaddy.com
with your order number and email address, and we will immediately offer you a full refund or an alternative solution to make this right. No arguments.
If we can resolve this to your satisfaction, we’d really appreciate it if you’d consider updating your review 🙏
We do want the chance to fix this properly.
Regards,
Back9lab
Sizing matters
One section of ad said get 1/2 larger another section said true to size. I got the 1/2 larger and they fit fine. It also takes awhile for them to be delivered, not the 5-7 days ad says. Maybe add that they ship from China and may take longer to receive.
4 February 2026
Unprompted review
Reply from Back9lab
Hey Gilbert,
Thank you for the honest and helpful feedback, we really appreciate it 🙏
You’re absolutely right about the sizing guidance, and we understand how mixed messages can be confusing. We’re glad the half-size larger worked out for you, and we’ll take your note on clearer sizing and delivery expectations seriously.
Regarding delivery time: we’re a Netherlands-based golf brand, and some items are fulfilled from international warehouses, which can take longer than advertised in certain cases. We’re actively working on improving transparency and shipping speed.
Thanks again for sharing this, feedback like yours helps us improve for everyone.
Regards,
Back9lab
I ordered two belts over 10 days ago…
I ordered two belts over 10 days ago and I have not had a reply via email or any shipping info updated. I have emailed the support team a few times and even left comments on Facebook and have not heard a thing. I expect my delivery to be fulfilled or I want a refund.
23 January 2026
Unprompted review
Reply from Back9lab
Hey Cam,
We’re really sorry about this, this is not the experience we want you to have.
There must have gone something wrong with your emails reaching us, and we completely understand your frustration after waiting this long without updates. That’s on us.
Please contact us directly at support@headcaddy.com
with your order number and email address, and we will immediately arrange either shipment of your belts or a full refund, whichever you prefer. No further delays.
We do respond to every message, so if this slipped through, we want to fix it right away.
Once this is resolved to your satisfaction, we’d really appreciate it if you consider updating your review 🙏
Regards,
Back9lab
The Black9Lab knee sleeve helps my golf
The Black9Lab knee sleeve was comfortable to wear when playing golf and didn't grip my knee too tightly.
I recommend it to golfers with knee problems
20 December 2025
Unprompted review
Reply from Back9lab
Thank you so much for your feedback! We're glad to hear the Back9Lab knee sleeve is helping you on the course and providing the comfort you need. ⛳️ Appreciate the recommendation!
If I could give zero I would
If I could give zero I would . Ordered 3 items nearly 3 weeks ago, numerous emails with only a standard “ we have received your email will respond in 48hours”then nothing .Absolute shambles off a company.have checked junk folder as suggested nothing very strange that you can answer Tripadvisor within a short time but not an email I have done as you’ve asked and emailed you. I await your reply as I’m sure trustpilot does as well. Watch this space potential customers!!
29 November 2025
Unprompted review
Reply from Back9lab
Hi there,
We’re really sorry for the experience you’ve had, that’s absolutely not the level of service we aim to provide at Back9Lab. We completely understand your frustration, especially after waiting this long with no clear update.
Our support team responds to all emails within 24 hours, so if you’re only seeing the automated confirmation, there’s a good chance our replies may have ended up in your spam or junk folder, we’d really appreciate it if you could check there.
That said, waiting nearly 3 weeks is unacceptable, and we want to make this right for you. Please email us again at support@back9lab.com
with your order number, and we’ll either reship your items immediately or issue a full refund, whichever you prefer.
We truly appreciate your patience and the chance to fix this. ⛳
It really helped during my round of golf
It really helped during my round of golf
1 November 2025
Unprompted review
Reply from Back9lab
Thanks for the great feedback! We're glad it helped during your round, always awesome to hear it's making a difference on the course! ⛳
Recent Order…
Plenty of communication regarding the order and delivered as outlined.
23 October 2025
Unprompted review
Reply from Back9lab
Thanks for the feedback! We’re happy to hear everything went smoothly and that you were kept in the loop throughout. Appreciate your support! ⛳
Only used a few times but knee support…
Only used a few times but knee support helped greatly with pain.
25 October 2025
Unprompted review
Reply from Back9lab
Thanks for sharing! We're glad to hear the knee support has already helped with the pain, wishing you continued relief and comfort!
Reply from Back9lab
Thanks so much! Glad to hear you’re enjoying the product and finding it comfortable.
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