Elite Speed. Zero Wrinkles. Every Hair Type.

Stop choosing between a hydrodynamic fit and your hair. The HydroFlex Dome uses Adaptive-Fit technology to morph to your head and hair shape while maintaining a rigid, drag-defying exterior.

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The Evolution of the Dome Cap is here. Speed Without the Struggle

Engineered for championship drag reduction, the HydroFlex construction eliminates "speed-killing" wrinkles while comfortably accommodating all hair volumes. Giving every athlete an elite, headache-free fit

HydroFlex Technology

  • Adaptive-Fit Technology

    Engineered with Variable Wall Thickness, the HydroFlex Dome features  lateral panels that morph to encapsulate any hair volume while maintaining a rigid, drag-defying exterior shell.

  • HydroGlide Channels
    Integrated HydroGlide Channels utilise fluid-dynamic micro-grooves to direct water flow and minimise surface friction, allowing you to slice through the water with significantly reduced drag

  • Apex-Grip Stabilisers

    The internal Apex-Grip Stabilisers utilise a precision-moulded matrix of micro-nodes to create a vacuum-like seal against the skin, ensuring your dome stays locked through explosive dive entries and high-velocity turns.

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The Competitive Edge

DON’T LET YOUR CAP BE YOUR WEAKEST LINK.

In a sport won by hundredths of a second, a wrinkled cap is a parachute. The HydroFlex Dome was engineered for the swimmers who refuse to sacrifice their hair for their PB. It sits lower, flexes more, stays tighter and moves faster.

The HydroFlex Dome doesn't just sit on your head; it adapts and anchors to it.

One Vault. Infinite Fit.

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Sizing Chart

Youth (50-56cm): Maximum compression for developing elite athletes.

Adult (54-64cm): Optimised for high hair volume and professional stability.

Test fit: Should feel snug but not restrictive. Stretch zones expand for ponytails or buns.

Technical Specifications

Material: 100% Premium Hypoallergenic Silicone.

Weight: 72g High-Density Construction (Prevents high-speed rippling).

Care Instructions

Rinse in cold fresh water post swim. Air dry.

Preserve the Apex-Grip Stabilisers by avoiding oil-based sunscreens 

  • The first technical advancement in caps I've seen in a decade.
    "As a coach, I see too many athletes lose focus and hundredths of a second adjusting slipping caps or dealing with 'parachuting' caused by wrinkles. The HydroFlex Dome solves the displacement issue entirely. The variable thickness is a brilliant bit of engineering; it gives my swimmers an elite racing profile without the usual discomfort that leads to distraction on the blocks. It’s now my top recommendation for any athlete looking to shave time."
    Coach Marcus | Miami Dolphins

  • Finally, a dome that doesn't feel like a vice."
    "I’ve always struggled with dome caps because of my hair volume. It usually meant choosing between drag or a massive headache. The HydroFlex actually adapts. It stayed perfectly still through my dive and felt like a second skin. A total game changer for my 100m Fly."

    Sarah M | Stage Age Qualifier

  • Worth every cent for the PB
    "You can feel the difference in the water immediately. The HydroGlide channels actually seem to move the water over your head differently. It looks sleek, feels fast, and most importantly, it’s wrinkle-free even with a bun underneath."

    Chloe R | National Age Qualifier

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