THERMWARD First access
CORE 01FIRST ACCESS

Keep the heat.
Cool what matters.

Premium sauna boxers with a discreet reusable cooling insert—designed for targeted thermal comfort without changing your ritual.

Get first access

Launching first to early-access members. No payment required.

Black THERMWARD CORE 01 sauna boxer with a blue cooling insert on a dark stone bench

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.

CORE 01 black boxer system with reusable shield-shaped blue cooling insertsReusable insert

How it works

Condition.
Insert. Sauna.

  1. 01

    Condition

    Prepare the reusable cooling insert before your session.

  2. 02

    Insert

    Slide it into the discreet front pocket built into CORE 01.

  3. 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
Pocket
Discreet front placement
Insert
Reusable shield shape
Purpose
Localized thermal comfort
Close-up of the reusable blue cooling insert inside the discreet front pocket

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
  • Health-conscious men building a deliberate weekly practice
  • 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 first to early-access members. Join the list to receive launch updates and priority access when availability opens.

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.