Luxilon Element Soft IR Tennis String Review
One of the biggest complaints about polyester-based strings is that they can be too stiff and uncomfortable, especially on shorter strokes and off-center impact. Luxilon's latest answer to this problem is Element Soft IR, one of the softest co-polys ever made by the company from Antwerp, Belgium. The secret sauce is called Multi-Mono Technology, a co-extrusion process that puts flexible fibers inside a special polymer matrix, first used over a decade ago in Luxilon's M2 strings. According to our playtesters, the comfort of Element Soft IR was immediately noticeable, as was the pocketing and spin-friendly targeting. It also gave our crew above-average feel and touch around the net (for a poly). On the downside, Element Soft IR aged like so many of the softer co-polys our team has tested over the years, suffering the effects of tension loss and frictional notching as the playtest wore on. As a result, many players will likely have to cut this string out before it snaps. Ultimately, though, for the player who wants a co-poly with above-average comfort, Luxilon Soft IR is well worth a test drive.
Comfort
Control
Spin
Loses tension and playability like a typical soft co-poly
Final Verdict
Breakdown
Control: 7.8
As a polyester-based monofilament, Element Soft IR is designed to give experienced players the control they need to execute long, fast strokes without having to worry about overhitting. However, given that Element Soft IR is a tad more flexible than the average poly, Michelle found that higher string tensions were required to unlock its charm. She said, "I had a chance to try this string above 50 pounds (at 56) and below 50 pounds (at 48), and I really noticed the plush pocketing at both tensions. However, the lower tension seemed to get a bit too springy and erratic, while the tighter option created the perfect blend of control and power. I was testing Element Soft IR alongside the firmest Luxilon string in the lineup, 4G, and that really helped me appreciate this string's added power and how the ball sank into the stringbed. With 4G, I really have to do all the work to get the ball through the court. With Element Soft IR, at the right tensions, I could swing a bit freer and received nice levels of power without losing control of my shots."
"I will say that Element Soft IR still provided good pocketing and control for my game even after it dropped in tension."
Chris appreciated the response of this string, especially at the beginning of the playtest. He said, "I liked the response of Element Soft IR the most when it was fresh in my racquet. I felt like there was ample control for me to go after my targets and not be fearful of overhitting. I found the control faded toward the end of the test. With that said, I was happy with the power I had on my shots throughout. I was happy with the pace I could generate on groundstrokes, and I also found solid pace on serves."
Spin: 8.0
Like the majority of polys they've playtested, Element Soft IR gave our crew enough spin potential to hit the full range of angles and trajectories. For Chris, however, this string's spin potential came with an expiration date. He explained, "I got solid spin on my shots with Element Soft IR. I was able to roll angles nicely, finding ample topspin to get the ball dipping inside the lines. Likewise, when driving a slice I felt like I was getting good spin on the ball, which allowed me to be aggressive. However, it did not take long for this string to notch, which impacted its snap back. This affected the feel, as well as the amount of spin I was getting, and I had a slight drop off in control as a result."

This co-poly packed more than enough spin potential for Michelle's game. She said, "I'm not looking to add loads of spin to my shots, but because of that pocketing, I did feel like the ball spit out of my stringbed with added RPMs. I felt really confident hitting big and low over the net, but I also had the ability to really ramp up the topspin when needed. I have been working on accelerating through the second part of my kick serves even more lately to get the ball to jump, and I appreciated this string when going for those aggressive kickers."
Feel: 8.0
Unlike the majority of Luxilon co-polys, Element Soft IR is made with Multi-Mono Technology, which is a co-extrusion process designed to create a softer, more comfortable feel. According to Michelle, the design works in spades. She commented, "This string is so comfortable! Period. There is not much more to say here. I'm used to playing with the firm, stiff, dead polys and this one is not that. It is plush and pockets well even when strung on the upper end of the recommended tension. No discomfort at all throughout the playtest! This string would also add some comfort to a poly/poly hybrid!"
"Element Soft IR felt soft and plush compared to most co-poly monofilaments."
Although Chris appreciated the feel initially, some problems developed over time. He said, "When the string was fresh I really enjoyed the feel and response of the string. I liked the sense of the ball pocketing nice and deeply in the stringbed and even off-center shots felt more forgiving than expected. Once the string had lost some tension and started to notch I felt like it had lost a bit of its magic. I had the sense the strings were getting stuck in position resulting in a firmer feel on spin shots. Conversely, the loss of tension had the string feeling flighty on flat shots which resulted in an on or off response for power depending on how I was hitting the ball."
Playability Duration: 6.4
All strings change over time. They lose tension and typically suffer the battle scars of friction, including notching and other surface imperfections that prevent the strings from deflecting and snapping back through impact. This is why the pros often change racquets several times over the course of a single match, and it's also why Chris noticed some significant playability issues as the playtest wore on. He described, "Any issues I had with Element Soft IR came when I kept it in my racquet deep into a couple weeks of hitting. I was ready to cut it out and string up a fresh set by the third week, which is not uncommon for me with co-poly strings. My issues with Element Soft IR came from notching and tension loss."

"While Element Soft IR did a lot of things well, I would say this category is the downside of the string," added Michelle. "I need to see what the lab says to confirm, but it did feel like Element Soft IR dropped tension faster than some of the stiffer polys I typically use. It was tough because I hit it side by side with 4G, a string that has pretty impeccable tension maintenance, for a week of the playtest.There was some notching after a week or so of use, but I didn't have issues with the string getting stuck out of place."
Breakdown Summary
Power | 7.6 |
Control | 7.8 |
Spin | 8.0 |
Comfort | 8.0 |
Feel | 8.0 |
Playability Duration | 6.4 |
Durability | 7.2 |
Final Verdict |
8.0 |
Tension Diagnostics
String Installation Grade | B+ |
Coil Memory | Moderate |
Friction Burn On Crosses | Low-Moderate |
Knot Tying | Low-Moderate difficulty |
NotchingTens | None |
Playtester Thoughts

Chris
Element Soft IR offered a crisper feel compared to other soft co-polys such as ISOSPEED Cream or Volkl Cyclone Tour. I also found better control than Cyclone Tour, but less power. Another string I'd compare this to is Yonex POLYTOUR AIR. Both strings offer a soft yet controlled response, with POLYTOUR AIR feeling the softer of the two. I think Element Soft IR is a great option for a player wanting lots of control and spin, but with a softer feel than most co-polys.
I really enjoy the spin, control, feel, ball pocketing and overall response when Element Soft IR is fresh. I also like the sound of this string. When I go after a big first serve it rewards my ears with a loud 'thwack' at impact.
I don't care for Element Soft IR into the second week of hitting, which is about eight on-court hours of hitting for me.
Chris's String Setup | |
Racquet | Head Speed Pro 2022 |
String Tension | 48 lbs, 58 lbs |
Typical String | Volkl Cyclone 16 |
Chris's Breakdown | |
Power | 7.4 |
Control | 8.0 |
Spin | 7.5 |
Comfort | 8.0 |
Feel | 8.0 |
Playability Duration | 5.8 |
Durability | 7.4 |
Overall | 7.9 |

Michelle
Element Soft IR has a similar feel and pocketing to Yonex Poly Tour Pro. That string is pretty popular with players of all levels, including tour players, thanks to its pocketing, feel and controlled power. I'd put Element Soft IR in a similar category. I'd recommend Element Soft IR to anyone who is starting to feel a bit beat up by those firmer polys that are super dead! It's a great option for players transitioning into polys and who are a bit unsure of what to expect and have heard stories of arm pain.
The pocketing is what I loved day in and day out of this playtest. Pairing a softer string with a firmer racquet is an awesome setup for me and a nice change of pace; this string offers more free power but still has control.
The tension maintenance seems to drop off faster than I would like it to. I don’t think this will be as big of an issue for players who likes low tension.
Michelle's String Setup | |
Racquet | Wilson Pro Staff RF Autograph 97 |
String Tension | 48 lbs, 58 lbs |
Typical String | Solinco Hyper-G |
Michelle's Breakdown | |
Power | 7.8 |
Control | 7.5 |
Spin | 8.5 |
Comfort | 8.0 |
Feel | 8.0 |
Playability Duration | 7.0 |
Durability | 7.0 |
Overall | 8.0 |