Frequently asked questions

Have questions? We’re here to help

Is it worth it if I only use the sauna occasionally?

Yes. Even a single sauna session may affect sperm production for weeks.

The male reproductive system operates several degrees cooler than the rest of the body for a reason.

During a sauna session, core body temperature can reach 40°C (104–106°F) well above the temperatures sperm cells are designed to tolerate.

Research has found that repeated heat exposure reduces:

• Sperm Count

• Sperm Concentration

• Sperm Motility

• Overall Fertility Potential

Research suggests recovery of fertility markers takes months, even after heat exposure is removed.

For thousands of years, men have protected their legacy.

KOLD. was built on the same principle.

Because some things are too important to leave unprotected.

Are the Sauna Plates™ safe?

Yes. The Sauna Plates™ are made from BPA-free, non-toxic materials and are designed for repeated freezing and daily use.

Does sauna heat actually affect fertility?

The testes naturally operate several degrees cooler than the rest of the body. Research has shown that repeated exposure to high heat can temporarily impact sperm production and quality. KOLD. is designed to help maintain a cooler environment where it matters most during sauna sessions.

How long do the Sauna Plates™ stay cold?

The Sauna Plates™ are designed to remain cool throughout a standard sauna session. We've increased the size of the plates by 20% to increase effective protection even further. Exact duration depends on freezer temperature, sauna temperature, and session length.

What is your return policy?

We offer a 30-day return policy. If you're not completely satisfied, contact us within 30 days of delivery via Email at info@kold.dk and we'll help arrange your return. Our goal is simple: a risk-free experience from your first sauna session onward.

Items however must be returned free of damages and in their original packaging.

Why haven't I seen products like this before?

Most sauna products focus on heat exposure. KOLD. focuses on protecting against it. While millions of men use saunas regularly, very few products are specifically designed to reduce heat exposure where it matters most.

Can I wash the shorts normally?

Yes. Remove the Sauna Plates™ and machine wash the shorts according to the care instructions. The cooling pocket is designed for everyday use.

Is KOLD. only for men trying to have children?

No. Many customers use KOLD. simply because they want to reduce unnecessary heat exposure, improve comfort during sauna sessions, and take a proactive approach to long-term health.