Natural Gut Tennis Strings: Every Brand Compared, Plus Multifilament and Soft Poly Alternatives
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Natural gut is the oldest string material in tennis and still the best performing one by several measurable metrics. Tension maintenance, power, arm comfort, feel — gut outperforms every synthetic alternative in those categories. The reason the majority of club players do not use it comes down to price and, to a lesser degree, durability concerns. The reason pros use it in hybrid setups rather than full beds is spin access. This is a full breakdown of the gut options on the market, how they compare to each other and to premium multifilaments, and where a modern soft poly like Toroline Wasabi fits into the picture for players who want arm-friendly performance without the gut price tag.
What Natural Gut Actually Is — And Why It Performs
Natural gut is made from the serosa layer of cow intestine — a membrane that is processed, twisted into fibres, and dried under tension. The result is a string with an elasticity profile that no synthetic material has fully replicated. The fibres stretch under ball impact and recover extremely quickly, which produces two things: exceptional power with a soft, plush feel at contact, and tension maintenance that holds up far longer than polyester or nylon alternatives.
The physics explanation: natural gut's elastic modulus is non-linear. It gets stiffer as it stretches, which means it returns energy efficiently across a wide range of ball speeds. Synthetic strings have a more linear elasticity — they behave similarly whether the ball hits softly or hard. Gut's non-linear response is what gives it that "alive" quality that players describe as the ball sitting in the strings longer than it should.
Babolat VS Touch — The Benchmark
Babolat VS Touch is the reference point for every other gut on the market. It is made using BT7 fibre treatment and a Thermogut coating that reinforces the string against moisture and abrasion — the main enemies of natural gut durability. It is available in 15L (1.35mm), 16 (1.30mm), and 17 (1.25mm) gauge, with a natural colour and a black version in 16g. The 16g is the most widely used: enough mass for stability without the stiffness of the 15L.
Tennisnerd's VS Touch review describes it as offering maximum comfort, tension maintenance, and feel, with the ball visibly sinking into the string bed on contact — something no poly delivers. Tennis Warehouse gave it a perfect 100/100 power score. The main weaknesses: premium price (expect to pay $55–75 AUD per set) and the fraying that comes with any gut string when hit with heavy topspin. Thermogut helps, but if you hit with a lot of spin, VS Touch in a full bed will fray faster than a poly.
Wilson Natural Gut — The Challenger
Wilson's natural gut was historically manufactured by Babolat under licence, but is now made independently at the Curamach factory in Ireland. The result is a string that many reviewers consider marginally softer than VS Touch, owing to the absence of Thermogut treatment. Wilson Natural Gut is available in 16 (1.30mm) and 17 (1.25mm), at a price point typically $5–10 less than Babolat depending on the retailer.
In direct comparison, the performance is extremely close. Players who have tested both often cite Wilson's 17g as slightly more feel-oriented and note that both sets last approximately the same time before fraying under normal hitting. The choice between them is largely personal. Babolat gets the nod for consistency and Thermogut protection; Wilson suits players who prefer a slightly softer, less treated gut feel.
Pacific Natural Gut — The Durable Alternative
Pacific produces two main natural gut options: the Classic and the Tough Gut. The Tough Gut uses Triple Seal Technology — multiple protective coatings applied to reinforce the natural fibres — and is specifically positioned as outlasting Babolat and Wilson in wet or humid conditions. The trade-off is that Pacific's gut plays slightly stiffer than Babolat or Wilson as a result of the heavier sealing.
Tennis Warehouse's Tough Gut playtest described "a perfectly crisp yet extraordinarily comfortable response" with outstanding dwell time and pocketing — the defining qualities of any top gut. The Classic plays softer and closer to Babolat's feel. Pacific's gut lands at a lower price point than Babolat or Wilson, making it worth considering for players who want to trial gut without committing to the full premium.
Volkl V-Icon — Budget Entry Point
Volkl V-Icon natural gut is the most accessible in pricing and one of the few good-quality budget gut options on the market. Reviews consistently describe a crisper, more precise response than Babolat or Wilson — less of the plushy depth and more of a direct, connected hit. For players who find Babolat VS Touch too arm-friendly and muted, V-Icon provides gut's tension maintenance and durability advantages with a more defined feel.
It is not for everyone — the crisper nature means it suits players who want feedback from gut rather than cushioning. But for players priced out of Babolat and Wilson who still want real gut, it is a genuine option rather than a compromise.
Natural Gut vs Multifilament — The Honest Comparison
Multifilament strings exist specifically to approximate natural gut at a lower price. The top tier — Tecnifibre NRG2, Tecnifibre X-One Biphase, Babolat Xcel, Wilson NXT — genuinely close the gap at the price level. But they do not close it completely.
The differences in practice:
Tension maintenance: Natural gut holds tension longer than any multifilament, by a meaningful margin. A set of Babolat VS Touch strung at 50 lbs will play closer to 50 lbs after two weeks than any NRG2 or X-One Biphase will. This matters for players who restring infrequently and want consistent feel between sessions.
Feel: Natural gut's non-linear elasticity produces a feel that multifilaments can approach but not replicate. Tecnifibre NRG2 is the closest — reviewers consistently describe it as "gut-like dwell time" and the sensation of holding the ball in the strings. X-One Biphase produces more raw power. But both feel synthetic compared to a fresh set of VS Touch, particularly at the edges of the sweet spot.
Durability: On this metric, good multifilaments often outlast gut, particularly for heavy topspin players. NRG2 will outlast Babolat VS Touch for any player with fast swing speeds and heavy spin. Multifilament fibres fray differently — they lose tension gradually rather than catastrophically notching through.
Price: A top multifilament set runs roughly half the price of premium gut. For players who restring frequently, this difference compounds significantly. NRG2 at $25 AUD restrung every three weeks is meaningfully different economics to VS Touch at $65.
The practical conclusion: for players with arm sensitivity who restring regularly and hit at moderate pace, premium multifilament is a sensible alternative to gut. For players at the advanced to elite level who prioritise maximum feel and tension maintenance above everything, there is no genuine substitute for gut — preferably in a hybrid.
The Hybrid Setup — How Most Pros Use Natural Gut
The most common professional gut setup is not full-bed gut but a gut/poly hybrid: natural gut in the mains, polyester in the crosses. This combination delivers the feel and power of gut through the mains (where the string spends most of its time under ball contact) while the poly crosses provide durability, spin bite, and control. Djokovic uses this exact setup — Babolat VS Natural Gut mains, Luxilon Alu Power Rough crosses.
For club players, the gut/poly hybrid is the most practical way into natural gut. You get most of the tension maintenance benefit from the mains. The poly cross holds the gut in place and reduces notching. The overall setup is more durable than full-bed gut while being more comfortable than full-bed poly. For arm-sensitive players, the combination of gut mains absorbing impact with a softer poly cross (such as Toroline Wasabi) produces the most comfort-conscious setup available in shaped poly territory.
When Soft Poly Makes More Sense Than Gut
Not every player's game suits natural gut, even in a hybrid. Heavy, fast swing speeds with aggressive topspin will eat through gut mains quickly — at tour level, players like Nadal famously replaced their gut hybrid every few games precisely because spin production destroyed the gut mains. At club level, a player with similar swing aggression may find gut strings fraying within a single session.
For those players, the new generation of soft co-polys offers a meaningful alternative that gets closer to gut's comfort advantages than traditional poly ever did. Toroline Wasabi is one of the better examples of this category. It is a square-shaped co-polyester in 1.23mm with excellent spin potential, arm-friendly construction, and a liveliness that most stiff polys do not offer. Tennisnerd called it "relatively soft for a shaped string" while retaining genuine bite and excellent spin action. Available in Pomegranate Red, Neon Green, and Neon Pink.
The companion string, Toroline Wasabi X, takes a different approach: a round profile with a slick low-friction coating that enables the mains to slide and snap back aggressively. The two strings are designed to work together — Wasabi in the mains for spin and bite, Wasabi X in the crosses for snapback — as a purpose-built hybrid. This combination replicates some of the snapback dynamics of a gut/poly hybrid at a fraction of the price and with significantly better durability for spin-heavy players.
Neither Wasabi nor Wasabi X competes with natural gut on feel or tension maintenance. But for a 4.0 baseliner who hits with heavy spin and cannot justify restringing every week, the Toroline Wasabi full bed or hybrid is the most relevant soft poly option currently available.
Summary — Which String for Which Player
Natural gut in any form suits players who prioritise feel, power, and arm comfort above control and price. Babolat VS Touch is the definitive choice for most players trying gut for the first time. Wilson Natural Gut is the slightly softer alternative at a marginally lower price. Pacific Tough Gut suits players in humid conditions or who want maximum durability from a real gut string.
Multifilament strings — NRG2, X-One Biphase — are the intelligent choice for gut-curious players who restring infrequently and want arm-friendly performance on a consistent budget. They get you closest to the feel without the cost.
Soft co-poly — Toroline Wasabi, Wasabi X — suits high-spin players who want lively, comfortable poly without the arm punishment of stiff tour strings. Not a gut replacement, but the best performance-per-pound alternative for heavy hitters who cannot use gut.
Frequently Asked Questions — Natural Gut Strings
Is natural gut still worth it in 2026?
Yes — for the right player. No synthetic string matches natural gut's tension maintenance, feel, or arm comfort. The question is whether the price is justified for your playing frequency and string budget. Players who restring frequently (every 2–3 weeks) and prioritise feel will get clear performance gains from gut or a gut/poly hybrid. Players who leave strings in for months and hit heavy topspin will likely get more value from a premium multifilament or soft co-poly.
What is the difference between Babolat VS Touch and Wilson Natural Gut?
Both are premium natural gut strings performing at a very similar level. Babolat VS Touch uses Thermogut coating for enhanced moisture resistance and consistent feel. Wilson Natural Gut, now made independently in Ireland, is considered marginally softer and slightly less treated — preferred by some players for a more natural gut response. Price difference is typically small. Either is an excellent choice.
How does natural gut compare to multifilament strings like Tecnifibre NRG2?
Natural gut outperforms every multifilament on tension maintenance and pure feel. NRG2 comes closest — reviewers describe its dwell time as genuinely gut-like — but at the fine level it still feels synthetic by comparison. Where multifilament has the advantage: price, durability for heavy hitters, and consistent availability. For arm-sensitive players at moderate swing speeds, top-tier multifilaments like NRG2 or X-One Biphase are a sensible alternative to gut at roughly half the price.
What is the best way to use natural gut as a club player?
A gut/poly hybrid — natural gut in the mains, polyester in the crosses — gives you the majority of gut's feel and tension maintenance benefits at lower cost and better durability than a full gut bed. The poly cross reduces notching and provides durability. A softer co-poly cross (like Toroline Wasabi X or Solinco Confidential) pairs well with gut mains for comfort-conscious players. Full-bed gut suits players who restring frequently and play at lower to moderate intensity.
What is Toroline Wasabi and how does it compare to natural gut?
Toroline Wasabi is a square-shaped soft co-polyester in 1.23mm — one of the more arm-friendly options in the poly category. It delivers excellent spin, good control, and noticeably less arm impact than stiff tour polys. It does not replicate natural gut's feel or tension maintenance, but for heavy topspin players who destroy gut mains quickly, it is the best-performing soft poly alternative. The companion Wasabi X (round, slick-coated) works alongside it as a hybrid cross designed to enhance snapback and spin generation.
How long does natural gut last?
It depends heavily on swing speed and spin rate. Moderate hitters in a full gut bed can expect 2–4 weeks of consistent play before fraying becomes an issue. Heavy spin players may see fraying in a single session. In a gut/poly hybrid, the poly cross significantly extends the gut mains' lifespan by holding them in position and reducing notching. Babolat VS Touch's Thermogut coating and Pacific's Triple Seal technology both extend gut longevity beyond uncoated alternatives.
Natural gut strings, premium multifilaments, and Toroline Wasabi are available at The Tennis Store with shipping across Australia and New Zealand.