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Tecnifibre Triax Natural tennis string set product photo
Tecnifibre

String

Tecnifibre Triax 16 / 1.33

The French multi-poly fusion that sits between soft multis and firm co-polys—crisper aim and better snapback than NXT/X-One, still arm-friendlier than ALU, with the usual multi fray tax at a premium set price.

Tecnifibre$22
poly refugees who want control and snapback without a stiff full-bed monomulti players who need firmer aim, less string movement, and longer playabilityarm-sensitive club hitters restringing often enough that fray is acceptable

Court Score

3/ 5

Demo this as a primary option in its lane? Not an average of the axes.How we score.

Powerfree depth
3
Controlaim when swinging out
4
Spinshape / dip
3
Comfortarm-friendly sessions
4
Valueworth street price
3

What it is

You take a full cut and the bed pockets—then snaps back in line instead of leaving a messy multi waffle. That’s Tecnifibre Triax: the brand’s “first co-polyester multifilament,” built to sit between soft nylon multis and stiff monofilament polys.

US retail naming (Sep 2026): Tennis Warehouse titles the volume set Tecnifibre Triax 16/1.33 String; Holabird lists Tecnifibre Triax 16 1.33 (style 01GTR133XN). Tecnifibre official sells Triax Natural Set with selectable gauges 1.28 / 1.33 / 1.38. Same product either way—focus gauge 16 / 1.33 mm, 40 ft / 12.2 m set (~12 m garniture). Composition per TW / Tecnifibre: multifilament—50% nylon (polyamide) fibers / 50% co-polyester fibers, high-density PU HD matrix, SPL (Silicon Pyrogene Lubritec) anti-abrasion / snapback coating. Color: Natural. TW University-style lab stiffness commonly cited around ~162 (soft-to-mid multi territory, firmer than mushy nylon beds). TW playtest Power 80 / Control 81 / Spin 76 / Comfort 85 / Overall 81. US street for a set: $21.95 (TW and Holabird, Sep 2026; TW category pages sometimes show a reduced $20.95). Reel if you string a lot: 660′ / 200 m ~$294.95 on TW for 16/1.33.

Not X-One Biphase, NRG2, HDMX, or Razor Soft—this listing is Triax, focused on the 16 / 1.33 set most club players buy (17 / 1.28 livelier; 15L / 1.38 for breakers).

Who it’s for

Serious recreational and club players (roughly 3.5–4.5) who want a middle path: poly hitters nursing elbow/shoulder who still want directional control and some snapback, and multi players who found NXT or X-One too launchy, too mobile, or too quick to fray into mush. Flat-to-moderate topspin swings that need pocketing without sailing. Strong hybrid candidate—Triax mains or crosses when a firm poly partner needs a forgiving mate.

Skip it if you need shaped-poly bite (Hyper-G / RPM Blast on Court List), want the plush gut-adjacent pillow of classic X-One / NXT as a full soft bed, or break every few hours—customer reviews still flag fray and early pops for heavy brushers and open 16×19 patterns. Also skip if $22/set feels steep for a string that can still die like a multi under spin; cheaper MLTs exist for pure comfort hours.

Standout details

  • Specs that matter: 16 / 1.33 mm (also 17 / 1.28; 15L / 1.38) · 40 ft / 12.2 m set · 50/50 nylon + co-poly multifilament · PU HD · SPL · Natural · lab stiffness ~162
  • Control is the pitch: TW Control 81—firmer, crisper aim than soft multis (NXT / X-One sit in the low-70s on TW control); playtesters swung out without the trampoline sail
  • Comfort without mush: TW Comfort 85—arm-friendlier than ALU-class polys; Tecnifibre claims ~15% more shock absorption vs classic mono and ~15% firmer vs classic multi
  • Spin is stroke + snapback: TW Spin 76—above soft-multi territory, below shaped poly; SPL and poly fibers help the bed realign instead of staying deflected
  • Playability window: TW Playability Duration 86 / Durability 79—tension hold praised vs dead polys; still frays; TW testers ~7–10 hours before noticeable wear; hard breakers report much less
  • Pricing ladder: Set $21.95; 660′ reel ~$295—same premium shelf as NXT / X-One / PTP; value improves if you string yourself and aren’t a weekly breaker
  • Tradeoffs: Premium set price; not shaped bite; not as plush as X-One; durability still multi-class under heavy spin; mixed customer love when expected to replace Hyper-G outright

Who’s hitting it

Club reality, not tour mythology. Triax shows up on US recreational sticks as the “poly-to-multi bridge”—arm-rehab beds, senior leagues, and players who hated string movement on soft multis. Tecnifibre’s own copy frames it for high-performing players who want depth, firm spin feel, and lifespan in one strand.

Tour usually isn’t this SKU. Tecnifibre tour athletes (Medvedev-era sticks and other TF frames) typically run custom polys, gut hybrids, or proprietary setups—not a retail full bed of Triax 16 Natural at your club tension. Treat any Tecnifibre athlete halo as brand-level, not “this exact 40 ft set is their match string.”

Retail ≠ tour setup. Pros cut out beds constantly. Why club players still care: if Court List already covers soft multis (NXT, X-One) and firm/soft polys (ALU, Hyper-G, RPM, PTP), Triax is the distinct multi-poly fusion lane—one set that tries to borrow snapback and control from poly without the board-like shock of a full mono.

Honest verdict

If Court List already covers Wilson NXT and Tecnifibre X-One Biphase on the soft-multi side and ALU / Hyper-G / PTP on the poly side, Triax fills the gap between them: crisper control and better string realignment than classic comfort multis, more arm forgiveness than tour silver. String it a touch higher than a soft multi if balls sail, or a few pounds under your usual firm poly if you’re converting off ALU—take clean cuts, straighten less than you would with NXT, and cut it out when fray dulls the snapback. It’s not the rare “everyone must demo this first” string, and heavy spin breakers will still chew it—but for serious recreational players who want one primary bed in the multi-poly middle lane, it’s the French fusion set that earns the slot.

Updated 2026-09-30