Keep the heat.
Cool what matters.
Your sauna. Your control. Premium boxers with a built-in pocket for targeted cooling where comfort matters most.
- Targeted cooling
- Discreet front pocket
- Reusable cooling insert
EARLY SIGNUP PERK30% off your first CORE 01.
Free to join. No payment until you order.
THERMWARD / FOUNDERS OFFER
AT LAUNCH
Join early.
Save on CORE 01.
Be part of the founders batch. Sign up for 30% off your first CORE 01 order and first access when we launch.
- 30% off the launch retail price
- Your offer delivered by email at launch
- Free to join. No purchase required.
One more step.
Check your inbox and confirm your email to join the founders list for 30% off your first CORE 01 order at launch. If it doesn’t arrive within a few minutes, check your spam or promotions folder.
The product
Whole-body heat.
Local control.
Sauna is meant to feel demanding. But total heat exposure does not have to mean giving up control where comfort matters most.
CORE 01 combines a premium black sauna boxer, a discreet front pocket, and a reusable shield-shaped cooling insert—bringing localized thermal comfort into the ritual you already know.
Reusable insertHow it works
Condition.
Insert. Sauna.
- 01
Condition
Prepare the reusable cooling insert before your session.
- 02
Insert
Slide it into the discreet front pocket built into CORE 01.
- 03
Sauna
Keep your usual heat ritual with targeted thermal comfort in place.
Product architecture
Designed into
the garment.
CORE 01 is shaped as premium performance apparel: a close, supportive fit in black, with the cooling system integrated discreetly at the front.
- Garment
- Premium black sauna boxer
- Discreet front placement
- Insert
- Reusable shield shape
- Purpose
- Localized thermal comfort
Fit. Discretion. Reusability.
Who it is for
Made for the
committed ritual.
For regular sauna users who value the heat and want more control inside it.
- Athletes who use sauna as part of training and recovery
- People who take a proactive approach to their health
- Performance-minded customers who expect function to feel refined
- Anyone done with improvised cooling solutions
FAQ / 03
The essentials.
When will CORE 01 be available?
CORE 01 will launch with a founders batch. Join the early-access list for first access and 30% off your first CORE 01 order at launch. We’ll email your offer when orders open. Signing up is free and does not commit you to a purchase.
How does the system work?
Condition the reusable shield-shaped insert, slide it into the discreet front pocket, and wear CORE 01 during your normal sauna ritual for localized thermal comfort.
What is CORE 01 designed to do?
CORE 01 is designed for localized thermal comfort during sauna use. It is not a medical device and is not presented as a way to protect fertility, change hormones, treat a condition, or make sauna medically safer.