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KRYOTX CORE

KRYOTX CORE

$79.99 AUD
$109.99 AUD $79.99 AUD
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Shipping calculated at checkout.

Your body wasn't built to handle sauna heat unprotected. This was.

Size

The science behind KRYOTX.
Explore the research that informed the design of KRYOTX CORE.
Read our Research & Insights →

Key Features:
✓ Dual-Surface Thermal Inserts
✓ Stealth Pocket Design
✓ Premium Organic Cotton
✓ Designed for Sauna & Recovery

Every pair of KRYOTX CORE includes 2 dual-surface thermal inserts, featuring a rapid-cool side and a moderated comfort side.

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EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       
EVERYDAY COOLING • FERTILITY SUPPORT • SAUNA READY •       

DUAL-SURFACE THERMAL INSERTS

Not every recovery session calls for the same level of cooling.

The dual-surface insert design allows you to choose between rapid cooling or a more moderated cooling experience, helping you tailor each session to your preference.

Simple, adaptable, BPA-free, and integrated into every pair.

STEALTH POCKET DESIGN

We rejected scratchy zippers, snaps, and velcro in favour of a cleaner solution.

Our signature triangular pocket design uses natural fabric tension to hold the thermal insert securely against the body, without added fasteners or bulk.

Move, stretch, sit, or relax comfortably knowing the insert stays securely in place throughout your session.

HEAVYWEIGHT ORGANIC COTTON

Not all cotton is created equal.

KRYOTX CORE is constructed from heavyweight organic cotton chosen for its premium feel, durability, and ability to comfortably support the thermal insert throughout your routine.

Built for recovery. Designed for everyday wear.

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Common Questions

What's included with my order?

Every purchase includes one pair of KRYOTX CORE underwear and two dual-surface thermal inserts.

How do I prepare the inserts?

Place the thermal inserts flat in your freezer for at least 2 hours before use. Once fully frozen, insert them into your KRYOTX CORE and you're ready to go.

How long do the inserts stay cold?

They are engineered to deliver effective cooling throughout a typical 20–30 minute recovery or sauna session, depending on your environment.

Can I wear them during cold plunges?

Yes. KRYOTX CORE is comfortable to wear during cold plunges, and there's no need to remove the thermal inserts. If you're returning to the sauna afterward, simply swap in a freshly frozen set for optimal cooling.

Can I wear them outside of the sauna?

Absolutely. KRYOTX CORE was designed for sauna sessions, recovery routines, travel, outdoor activities, and everyday comfort.

How do I wash KRYOTX CORE?

Always remove the thermal inserts before washing. Machine wash the underwear on a cold cycle and air dry. For the inserts, simply wipe them down with a damp cloth and store them in the freezer.

How do I choose the right size?

Refer to our size chart. If you are between sizes:
• Size up for maximum everyday comfort.
• Size down for a firmer, more compressive fit.

Are additional inserts available?

Additional inserts and accessories are currently in development and will be available soon. Stay tuned for future releases.

Where do you ship from?

All orders are processed and dispatched directly from Sydney, Australia.