Powerlifting places more demand on the knee than almost any other sport. The right knee support can make a meaningful difference to performance, joint health and training longevity - but with so many options available, knowing which one to choose is not always straightforward. Here is every option explained, from entry-level sleeves to competition-grade wraps.
Walk into any powerlifting meet and you will see a full spectrum of knee support on display. Some lifters squatting in thick stiff sleeves. Others in standard 7mm neoprene. Some in wraps so tight they need help getting them on. And a handful competing raw with nothing at all.
Each choice reflects a different set of priorities - the weight being moved, the federation rules, the athlete's preference and what they have trained in. Understanding those differences is the first step to making the right choice for your own training.
Here is every knee support option in the Mammal Strength range explained - what each one does, who it is for and where it sits in the powerlifting context.
Option 1 - Mammal V3 5mm Knee Sleeves - £45.95
The 5mm is the most versatile sleeve in the range and the natural starting point for powerlifters who are building their strength base and not yet working at weights that demand maximum compression.
Built from highest grade CR neoprene with reinforced double stitching, the V3 5mm provides meaningful joint warmth, compression and proprioceptive feedback across heavy training without the stiffness that thicker sleeves introduce. For lifters who also do accessory work, conditioning or any training outside of pure powerlifting, the 5mm moves more freely and stays comfortable across a full session.
It is also the right choice for powerlifters who squat with significant depth and find that 7mm sleeves restrict their bottom position.
- Best for - general strength training, powerlifting at moderate to heavy loads, lifters who need flexibility alongside support
- 12-month product warranty as standard
Shop Mammal V3 5mm Knee Sleeves - £45.95 ->
Option 2 - Mammal V3 7mm Knee Sleeves - £45.95
The 7mm is the industry standard for serious powerlifting training and the sleeve most commonly seen on the platform at meets. The additional neoprene thickness compared to a 5mm sleeve delivers significantly more compression, more warmth retention and more proprioceptive feedback - all of which matter more as the loads get heavier.
The V3 7mm is built from the same highest grade CR neoprene as the rest of the V3 range, with reinforced double stitching and a construction designed to maintain consistent compression across hundreds of sessions without softening or losing shape.
The trade-off relative to a 5mm is stiffness. The 7mm restricts range of motion more than a thinner sleeve. For most powerlifters working in the 60-90 degree squat range this is not a problem - the compression benefits significantly outweigh the stiffness at those loads. For lifters who squat very deep, it is worth factoring in.
- Best for - serious powerlifting training, squatting above 1.5x bodyweight, athletes who want maximum warmth and compression from a standard sleeve
- 12-month product warranty as standard
Shop Mammal V3 7mm Knee Sleeves - £45.95 ->
Option 3 - Mammal V3 7mm Straight Cuff Knee Sleeves - £49.95
The Straight Cuff is a variation on the standard V3 7mm built around a different construction at the top and bottom edges of the sleeve. Where a standard sleeve has a contoured, tapered cuff, the straight cuff design provides a uniform edge that sits flush against the leg without rolling or moving under load.
For powerlifters who find that standard sleeves roll down during heavy squats - particularly at the top edge under a loaded bar - the straight cuff solves the problem cleanly. The sleeve stays in position from the first rep to the last without needing to be adjusted between sets.
The same highest grade CR neoprene, the same 7mm thickness, the same reinforced stitching - just a construction detail that makes a meaningful practical difference for athletes who have experienced sleeve movement under load.
- Best for - powerlifters who find standard cuffs roll or shift under a loaded bar, athletes who want the security of a sleeve that stays exactly where it is placed
- 12-month product warranty as standard
Shop Mammal V3 7mm Straight Cuff Knee Sleeves - £49.95 ->
Option 4 - Mammal 3mm Double Ply Knee Sleeves - £25.95
The 3mm double ply sits at the other end of the neoprene spectrum from the 7mm - thinner in profile but more flexible, designed for athletes who need joint support without the restriction that thicker sleeves introduce.
Double ply construction means two layers of material bonded together, which gives the sleeve more structure than a standard 3mm single layer while remaining significantly more flexible than a 7mm neoprene sleeve. For powerlifters who also train Olympic lifting, CrossFit or any sport requiring full range of motion, the 3mm double ply offers a practical middle ground.
In a pure powerlifting context, the 3mm double ply is most useful as a warm-up sleeve - worn during lighter sets and accessory work to keep the joint warm, then swapped for a 7mm or stiff sleeve for the heavy working sets.
- Best for - warm-up and accessory work, athletes who train across multiple disciplines, powerlifters who find 7mm too restrictive
- 12-month product warranty as standard
Shop Mammal 3mm Double Ply Knee Sleeves - £25.95 ->
Option 5 - Mammal Stiff Knee Sleeves Pro - £86.95
The Stiff Pro is the most supportive sleeve in the Mammal range and the choice for powerlifters who are pushing maximal loads and want every advantage available from their equipment.
Built from high-density Stiff CR Neoprene with reinforced stitching and a 30cm sleeve height, the Stiff Pro delivers a locked-in feel under load that standard neoprene sleeves cannot match. The high-density construction resists compression rather than yielding to it - creating a rigid support structure around the joint and generating meaningful elastic rebound energy at the bottom of a heavy squat.
That rebound effect is what separates the Stiff Pro from every other sleeve in the range. At maximal loads, the energy stored in the compressed sleeve during the descent is released during the drive out of the hole - providing a mechanical assist that becomes more significant as the weight increases. It is why stiff sleeves are standard equipment at the top end of competitive powerlifting.
The trade-off is that stiff sleeves are harder to get on, stiffer to move in and less practical for warm-up work or accessory exercises. Most athletes who use the Stiff Pro save it for their heavy working sets and competition preparation.
- Best for - competition powerlifting, maximal squat attempts, athletes who have used standard 7mm sleeves and want more support and rebound
- Rated 4.8 stars from over 132 reviews
- 12-month product warranty as standard
Shop Mammal Stiff Knee Sleeves Pro - £86.95 ->
Option 6 - Mammal Knee Wraps - £19.95
Knee wraps are a completely different category of knee support to sleeves - and understanding the difference is important before choosing between them.
Where a sleeve slides over the knee and provides consistent compression throughout a session, a knee wrap is a length of elastic material wound tightly around the knee joint before each heavy set and unwound between sets. The degree of compression and support a knee wrap provides is significantly greater than any sleeve - and it comes with a correspondingly greater degree of restriction in movement.
Knee wraps are permitted in some powerlifting federations and divisions but not others. The IPF, for example, does not permit knee wraps in its raw division - only knee sleeves. Before investing in wraps for competition use, check the rules of the federation you compete in or plan to compete in.
In training, knee wraps are most useful for occasional maximal effort attempts where the additional support and rebound of a wrap is beneficial - and where the time taken to apply them between sets is acceptable. They are not practical for high-volume training where you are doing multiple sets with short rest periods.
- Best for - equipped powerlifting, maximal one rep max attempts in training, strongman athletes
- Check federation rules before using in competition
Shop Mammal Knee Wraps - £19.95 ->
How to Choose the Right Option for Your Training
Here is a simple framework to narrow it down:
If you are new to powerlifting or building your strength base
Start with the V3 5mm or V3 7mm. Both provide genuine support at a price point that makes sense before you are moving the kind of loads that justify a stiff sleeve.
If you are an intermediate powerlifter training heavy regularly
The V3 7mm or V3 7mm Straight Cuff is the natural choice. Serious compression, quality CR neoprene, consistent performance across heavy training blocks.
If you find standard sleeves roll or shift under load
The V3 7mm Straight Cuff solves this directly. Same compression as the standard 7mm, stays in place under a loaded bar.
If you are competing or pushing maximal loads
The Stiff Knee Sleeves Pro is built for exactly this. Maximum compression, meaningful rebound, 30cm coverage and high-density Stiff CR Neoprene that performs at the top end of the sport.
If you compete in equipped powerlifting
Mammal Knee Wraps provide the maximum support available from a wrap and are built for the demands of equipped lifting and strongman. Check your federation's rules before competing in them.
Every Sleeve. One Guarantee.
Every knee sleeve in the Mammal Strength range is backed by the same guarantees regardless of which option you choose:
- 12-Month Product Warranty - covered against manufacturing defects and rips and tears for a full year
- 30-Day No-Quibble Returns - not the right fit or size? Send it back within 30 days
- Tested by Real Athletes - used daily by CrossFit, weightlifting and strength athletes worldwide
- Fast, Reliable Shipping - dispatched quickly from the UK
Not sure which option is right for you? Use our knee support buying guide to find the right sleeve for your training in under two minutes.
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