ST3 Tether System

Maximum flex for the smoothest, most natural swim feel. Our flagship 3-piece fiberglass pole delivers the closest thing to open-water swimming in any pool.

$420.00 $398.00 Save $22.00

BUILD YOUR ST3 KIT ↓

Includes pole, belt, carabiner, carry bag + your choice of base and cord

69"

Pole Height

39"

Flex Range

3-Piece

Construction

UV-R

Fiberglass

The Most Natural Swim Feel

The ST3's triple-rod fiberglass construction delivers 39 inches of smooth, progressive flex — more than any other model. The pole bends naturally with your stroke, absorbing jolts and creating a swim experience that feels like open water. No sudden stops. No jarring resistance. Just fluid, continuous movement.

Built to Last Outdoors

Pultruded fiberglass with UV-resistant resin stands up to sun, chlorine, and salt water year after year. The three-piece design (0.75" → 0.625" → 0.5" diameter progression) creates the perfect flex curve — stiff at the base where you need stability, supple at the tip where you need give. Drops into the base in seconds, removes just as fast.

For Swimmers Who Want More

The ST3 is our choice for performance swimmers, triathletes, and anyone with a full-length pool who wants the most natural training experience. The extra height and flex range gives you a wider swimming arc and more freedom of movement. If you want to feel like you're actually swimming — not just pulling against a bungee — this is the one.

What Swimmers Say

Tell us how likely you are to recommend Swim Tether to others—based on your install, performance, and overall experience.:

0 - Not at all confident

10 - 100% would recommend

What did you like most—easy setup, sturdy design, swim experience, or something else?: Easy to use

We’re always improving. If anything felt unclear or could be better, let us know.: See what I wrote above.

Sharing your setup helps others find the right fit.: Easy once pool guys drill hole.

I like it

I like it. Works as advertised except I paid and did receive screw thread model. Would be nice if there was optional over shoulder clip belts not just waist so u could adjust wear on torso the belt sits. My lowere back wants it not to be belt high which tugs lower back down while I pull upper torso by swimming. Would be better if. Belt was chest hi.

Tell us how likely you are to recommend Swim Tether to others—based on your install, performance, and overall experience.:

0 - Not at all confident

10 - 100% would recommend

We’re always improving. If anything felt unclear or could be better, let us know.: as said above - please offer an adapter in order to be able to use the old fixture with the set m tether as the new one doesn’t fit.

Great product - already used the original swim tether and the new one remains to deliver a great ...

One complaint - the new swim tether did not fit into the original holder (seemingly the new one is a tiny bit wider which prevents it to fit in the old holder. Would be nice to know about it in advance. Also - as I assume I am not the only one encountering this issue - why don’t you offer an adapter.

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