The goal isn’t just to play better. It’s to keep playing.

11X is a performance undershirt built for how pickleball actually feels mid-match
Core fatigue is where your game breaks. Posture slips, rotation shortens, and consistency fades.

11X keeps you stable and structured so your performance doesn’t drop off mid-match.
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Pro-player tested
"As someone who spends many hours on court, I pay close attention to how gear feels. This is a high-quality shirt that feels great on, adds warmth, and provides an added layer of support during long days of play.” Dave Weinbach, 10X USA Pickleball Champion

Built for the Long Game

Most players fall apart after 45 minutes. This keeps you sharp.
As fatigue sets in:
  • posture starts to collapse
  • rotation becomes less efficient
  • movement slows and gets sloppy
11X is built to help you hold your structure when that happens.

It’s about supporting your core so you can stay stable, move better, and remain consistent from first serve to match point.

What makes 11X different?

Designed for pickleball players who want more comfort, support, and stability through long sessions, league nights, and tournament days.

• Worn under your regular shirt or jersey
• Supportive feel without bulky layering
• Lightweight stretch fabric for movement and comfort
• Built for repeat play, long sessions, and match-day confidence

Not Just Another Compression Shirt

We abandoned the thin, flimsy fabrics of standard activewear delivering elite four-way stretch for aggressive lunges, while providing the firm, physical hold your core needs when the game is on the line.

Support That Holds Up Under Pressure

A performance base layer designed to support your body through long sessions, repeated rotation, and late-match fatigue.

Targeted Core Support: Supports the lower torso to help maintain posture and stability through long rallies.
Built for Rotation: Moves with your body so your swing stays connected and controlled.
No Restriction, No Distraction: Flexible compression that stays comfortable through hours of play.

True Base Layer Performance: Designed to disappear under your gear while working where it matters most.
The pickleball support layer people trust for long sessions, tournament days, and serious play.

Engineered for the court

Hold Your Structure

Helps you stay upright and stable as your body starts to fatigue.

Maintain Your Rotation

Keeps your core engaged so your swing stays consistent late into matches.

Move Without Breakdown

Supports lateral movement and quick resets without restriction.

The Science of Stability
"From a movement perspective, high-quality compression wear like 11X enhances postural awareness and movement efficiency by improving proprioceptive feedback. This helps maintain better spinal alignment, supports core engagement, and reduces strain on the spine and muscles."

— C.M. Licensed Physiotherapist

Be the first to experience 11X

Shipping Spring 2026

Join the list for 25% off and early release updates.
 NOW AVAILABLE JOIN THE 11X FOUNDING TEST TEAM