Most strength equipment brands offer no warranty on their knee sleeves. We offer 12 months on every single one we make. Here is why - and what it actually means if something goes wrong.
When you spend money on training equipment, you should be able to trust that it will hold up. Not just for one session, or one month, but across the kind of sustained, heavy use that serious athletes put their kit through.
That sounds obvious. But look at most knee sleeve brands and you will find no warranty at all. Buy the sleeve, hope it holds up, and if it does not - that is your problem.
We do not think that is good enough. Which is why every Mammal Strength knee sleeve comes with a 12-month product warranty as standard.
Here is why we are able to offer it - and what it means for you in practice.
It Starts with the Material
The warranty is not a marketing decision. It is a consequence of the material we use.
All Mammal Strength V3 Knee Sleeves are built from highest grade CR (Chloroprene Rubber) neoprene. CR neoprene is significantly more resilient than the SBR (Styrene Butadiene Rubber) neoprene used in most budget sleeves. It maintains consistent compression under repeated heavy loading, resists breakdown from sweat and washing, and holds its shape across hundreds of sessions in a way that cheaper materials simply do not.
We know what CR neoprene is capable of because we have been working with it for years. We know how it performs under real training conditions. We know it holds up.
That knowledge is what makes the warranty possible. We are not taking a gamble by offering it - we are backing what we already know the material can do.
And the Construction
Material alone is not enough. A sleeve is only as durable as its weakest point - and for most cheap sleeves, that weak point is the seams.
Mammal V3 Knee Sleeves use reinforced double stitching throughout - at the top and bottom edges where the stress of repeated pulling on and off is greatest, and along the body of the sleeve where compression under load places constant demand on the construction.
The combination of CR neoprene and reinforced stitching is what we back with 12 months of cover. Both have to be right for the sleeve to perform and last the way we expect it to.
What the Warranty Actually Covers
The Mammal Strength 12-month warranty covers manufacturing defects plus rips and tears for a full year from the date of purchase.
In plain terms - if your sleeve breaks down through normal training use within 12 months, we will replace it. No lengthy back and forth, no trying to prove it was not your fault. If the product has failed, we fix it.
What the warranty does not cover is fair wear and tear from misuse - using a sleeve as something it was not designed for, or damage from storage or cleaning that falls outside normal use. But for athletes training hard and using their sleeves properly, those situations are rare.
Why Most Brands Do Not Offer This
The honest answer is material and construction cost.
CR neoprene costs more than SBR. Reinforced double stitching takes more time and material than a single seam. A sleeve built to last costs more to produce than one built to a price point.
Brands that build to a price point cannot offer a meaningful warranty because they know the product will not hold up across 12 months of real training. Offering a warranty on a sleeve that is going to soften, stretch and fray within six months is not something a brand can sustain.
We build to a quality standard instead. That costs more to produce. But it means we can stand behind what we make - and you can buy with confidence knowing that if something goes wrong, we are here.
What This Means When You Buy
It means you are not taking a risk.
Buying training equipment online involves a degree of trust. You cannot feel the material, test the compression or assess the stitching before it arrives. The warranty is our way of removing that risk from the equation.
If the sleeve is not what we said it would be - if it breaks down, tears or fails to perform the way a quality CR neoprene sleeve should - you are covered. For a full year. No argument.
Combined with our 30-Day No-Quibble Returns policy - if the fit or size is not right, send it back within 30 days - we want buying from Mammal Strength to feel as low-risk as possible. Because we are confident in what we make.
The Stiff Knee Sleeves Pro - Also Covered
The 12-month warranty extends to our premium Mammal Stiff Knee Sleeves Pro as well - our high-density Stiff CR Neoprene sleeve built specifically for powerlifting and maximal lower-body lifts.
At £86.95 the Stiff Pro is a serious investment in your training. The warranty means it is a protected one.
Shop Mammal Stiff Knee Sleeves Pro - £86.95 ->
Find the Right Sleeve for Your Training
Every Mammal Strength knee sleeve - from the 3mm double ply through to the 7mm V3 and the Stiff Pro - is covered by the same 12-month warranty. Because every one of them is built to the same standard.
Not sure which sleeve is right for your training? Use our knee support buying guide to find the right option in under two minutes.
Find your perfect knee sleeve ->
Browse the full Mammal Knee Sleeve range - all backed by our 12-month warranty ->
