Steve Hoyles

One base layer that does it all - the most versatile hard-working items in your wardrobe. 

From ski trips and hiking adventures to rugby tours and endurance training, KYMIRA base layers deliver wearable performance science—anytime, anywhere.

Key Benefits at a Glance:
Thermoregulation support: Maintain a stable, comfortable temperature; baselayers proven in −35° to +48°C environments.

Warm up faster & stay reactive: Infrared fibres heat quickly and hold warmth 63%
longer to keep muscles responsive in the cold.

Reduce soft‑tissue injury risk: Infrared‑driven Nitric Oxide supports circulation and tissue oxygenation—used by pro groups reporting major injury reductions.

Boost endurance & oxygen delivery: Enhanced vasodilation improves blood flow and reduces stiffness to support long‑session performance.

Better altitude adaptation: Helps maintain Nitric Oxide levels at elevation for
steadier breathing, warmth and energy.

In‑built SPF35+ protection.

Moisture wicking: Infrared fabric dries 65% quicker on average, dissipating excess heat
via evaporation.

In‑built natural antimicrobial protection: Quartz dioxide in the mineral mix to help you
stay fresher.

On‑the‑go recovery benefits: Less fatiguing metabolites and lower DOMS from micro‑tears when integrated into daily wear.

Why Infrared Base Layers Beat ‘Warmth‑Only’ Solutions

KYMIRA Infrared embeds proprietary mineral blends within the fibres; when activated by body heat, the fabric re‑emits safe, low‑intensity far‑infrared (FIR) back into tissues. The result: improved microcirculation and tissue oxygenation—key drivers of endurance, power sustainability, and recovery quality. In placebo‑controlled trials, FIR garments delivered 5–8% increases in transcutaneous oxygen (tcPO₂) within 30–90 minutes and ~12% gains in grip strength compared with control shirts worn for the same duration.

Clinically Proven Recovery You Can Wear

The University of Notre Dame published a peer‑reviewed study demonstrating that recovering in KYMIRA infrared garments significantly accelerates neuromuscular recovery at 48 hours (p<0.001) and improves performance markers at 24 hours (p<0.05) versus placebo. Participants reported faster subjective readiness to train again within 24–48 hours.

Travel & Environmental Performance—Beyond Warmth

Long‑haul sitting can compromise circulation and raise stiffness; continuous infrared exposure during travel helps maintain microcirculation and oxygen delivery, reducing perceived soreness and stiffness so you arrive ready to move. Infrared garments assist thermoregulation—keeping you comfortable across cool cabins, cold transfers, and warmer destinations—while breathable, quick‑drying construction supports heat dispersion and skin comfort in hot weather.

Thermoregulation, UV & Altitude Adaptation

KYMIRA Infrared products help regulate temperature differently from standard clothing through biological and fabric‑level effects. In cold climates, the fabrics warm quickly and retain thermal energy 63% longer than an equivalent‑weight fabric. In hot conditions, they dry 65% faster on average, dissipating excess heat via evaporation. Increased circulation around infrared‑exposed areas transports heat more
efficiently, creating a regulating effect rather than simple heating or cooling. Our customers use KYMIRA base layers successfully in temperatures from −35°C to +48°C. Additionally, infrared‑driven nitric oxide (NO) support may aid altitude adaptation by helping maintain NO levels—which otherwise decline in low‑oxygen environments—supporting blood flow and oxygen delivery at elevation.

KYMIRA’s mineral mix also includes Quartz Dioxide. This is incorporated not for
infrared purposes but for its ability to absorb shorter‑wavelength UV that is
harmful to us. Once absorbed, it converts UV into a longer wavelength more
harmful to microbes. This dual effect contributes to in‑built SPF35+ protection
and a natural antimicrobial effect to help you stay fresher.

Injury Prevention via Infrared Muscle Priming

Soft‑tissue injuries often occur when tissues are under‑prepared relative to session intensity. KYMIRA’s infrared base layers support pre‑session muscle priming—a practical, wearable routine for injury mitigation. A pre‑wear window (≥30–90 minutes) elevates microcirculation, oxygen availability, and tissue readiness before load.
Internal usage protocols recommend ~90 minutes for optimal priming paired with
warm‑ups, helping reduce risk during high‑speed or high‑volume sessions.

The Bottom Line

The best base layers do more than trap
heat—they enhance the biology that powers performance. With measured oxygenation gains, clinically validated recovery improvements, travel‑friendly wearability, thermoregulation and altitude support, plus injury‑prevention muscle priming, KYMIRA infrared base layers help you train harder, go further, and recover quicker—day after day.

How Infrared Base Layers Work

Your heat → targeted infrared → biological response. Embedded minerals absorb thermal energy and re‑emit FIR at low intensities over long periods—an exposure pattern linked to microcirculation improvements, oxygenation gains, and recovery support without the bulk or logistics of external devices.

Best‑Use Protocols for Athletes & Outdoor Enthusiasts

• Prime (Pre‑session): Wear KYMIRA ≥30–90 minutes before activity.

• Perform (During): Keep the base layer on throughout the session.

• Recover (Post): Maintain wear for ≥2 hours post‑training; extend to overnight where possible.

• Travel & Sleep: Use during flights/drives and sleep to counter stiffness and support continuous recovery.

References

1.     Gordon IL, Vangel M, Hamblin MR. Effect of Shirts with 42% Celliant®
Fiber on tcPO2 Levels and Grip Strength in Healthy Subjects: A
Placebo‑controlled Clinical Trial. Journal of Textile Science &
Engineering. 2019;9(4):403. Europe PMC: https://europepmc.org/article/PMC/PMC8351537

2.     KYMIRA. Clinical Studies index and summaries.
https://kymira.com/pages/clinical-studies

3.     KYMIRA. New KYMIRA Infrared Peer‑Reviewed Clinical Study with the
University of Notre Dame.
https://kymira.com/blogs/company-insights/new-kymira-infrared-peer-reviewed-clinical-study-with-the-university-of-notre-dame

4.     Notre Dame (MDPI JFMK, 2025). Far‑Infrared‑Emitting Garments in
Enhancing Recovery Following Resistance Exercise. (Link via KYMIRA blog above)

5.     KYMIRA Product Page: Men’s Infrared Performance Baselayer Top LS
(IR50) – features and thermoregulation claims.
https://kymira.com/products/mens-charge-ir50-top-ls

6.     KYMIRA Insights/Science: Thermoregulation notes—warms faster,
retains heat 63% longer; 65% faster drying. (See product/insights pages).

7.     Internal Guidance: KYMIRA Infrared Trial Measurements & Outcomes
Draft 1—usage protocols and altitude/NO notes.

8.     Physio Hub / Infrared therapy overview (supporting circulation,
recovery mechanisms).
https://psphysio-hub.com/infrared-therapy-for-athletes-boosting-recovery-and-performance-naturally/