How KYMIRA® Infrared Works: Recovery + Sleep Mechanisms Combined

A complete technology‑applied overview.

1. Energy Conversion → FIR Emission → Biological Stimulation
Body heat is absorbed by KYMIRA’s bioceramic matrix and re‑emitted as far infrared (6–14 µm). This penetrates the skin to stimulate micro‑circulation, support tissue oxygenation, and calm the autonomic nervous system — processes that accelerate physical recovery and promote deeper, more restorative sleep.

2. Nitric Oxide (NO) Activation → Vasodilation & Parasympathetic Balance
FIR exposure enhances nitric oxide signalling, increasing local vasodilation and micro‑circulation.

During recovery: improved blood flow supports nutrient delivery and waste clearance.
During sleep: enhanced circulation helps shift the body toward parasympathetic dominance, making it easier to fall asleep and maintain uninterrupted sleep cycles.


3. Increased Tissue Oxygenation (tcPO₂ +5–8% within 30–90 min)
Independent placebo‑controlled trials show KYMIRA Infrared raises transcutaneous oxygen (tcPO₂) by ~5–8% compared to control.

For recovery: supports oxygen‑dependent repair, reduces heaviness, and accelerates soft‑tissue remodeling.
For sleep: deeper oxygenation aids overnight regeneration and contributes to smoother movement and reduced stiffness upon waking.


4. Mitochondrial & Angiogenic Signalling (ATP & Adaptation Support)
FIR garments up‑regulate mitochondrial and angiogenic pathways tied to ATP production, vascular adaptation, and long‑term tissue support.

In recovery windows: this accelerates cellular repair and enhances neuromuscular readiness.
Overnight: these pathways operate during sleep’s natural repair peaks, contributing to deeper restoration and improved morning readiness.


5. Lower Physiological Cost (Metabolic Efficiency)
Sports physiology studies show reduced oxygen cost (VO₂) at submaximal workloads when wearing FIR apparel.

For recovery: the body returns to baseline faster with less physiological strain.
In sleep: reduced cardiovascular and metabolic load supports steadier HRV patterns and calmer nocturnal physiology.


6. Thermal Comfort & Moisture Management (Essential for Both Sleep & Cool‑Down)
KYMIRA fabrics regulate temperature and wick moisture efficiently.

For recovery: stabilises micro‑temperature during cooldowns, travel, and rest.
For sleep: prevents overheating — a major source of night‑time waking — and helps maintain an optimal sleep micro‑climate.



Why It Matters for Recovery & Sleep

1. Faster Neuromuscular Restoration & Performance Readiness
Peer‑reviewed sport studies show highly significant improvements in neuromuscular recovery at 24–48 hours when wearing KYMIRA Infrared. Athletes demonstrate better readiness metrics and improved next‑session performance compared to placebo.

2. Reduced DOMS, Soreness & Inflammatory Load
Infrared exposure modulates pain‑relief and anti‑inflammatory pathways, reducing soreness and stiffness. This benefits:

- post‑training recovery
- overnight comfort
- easier, smoother movement the next morning

Applied KYMIRA studies show a 13.6% reduction in soreness when worn during sleep.

3. Improved Sleep Quality & Night‑Time Restoration
Infrared enhances circulation, promotes deeper oxygenation, and stabilises temperature — all critical for high‑quality sleep.
KYMIRA's applied sleep study with the University of Texas demonstrated a 15.9% improvement in sleep quality, a 15.8% reduction in fatigue with overnight usage.

4. Enhanced Tissue Repair During the Body’s Natural Recovery Window
The tcPO₂ rise aligns with the post‑session and early‑sleep repair phases when the body:

- rebuilds tissues
- clears metabolic waste
- strengthens neuromuscular adaptations

This results in reduced next‑day heaviness, easier mobility, and better overall recovery continuity.

5. Long‑Term Training Adaptation & Biological Balance
Infrared‑driven increases in mitochondrial and angiogenic signalling contribute to:

- improved vascular support
- better muscular adaptation
- more efficient energy production
- supportive long‑term recovery and sleep cycles


Passive, Non‑Powered Recovery — Day & Night

KYMIRA Infrared works continuously with no settings, charging, or scheduling — enabling:

- post‑training wear
- travel recovery
- overnight recovery
- lesiurewear
- habitual use that compounds benefits over time

Consistency → stronger cumulative outcomes in both recovery and sleep quality.

Learn more in our Science area

Model is wearing: Size Large

Model's height: 188cm / 6'2''

The size charts below detail the relevant sizing or points of measurement for all of our products. Our garments do not need to be tight and against the skin for our infrared technology to work, so we suggest fitting to your personal preference. If you are looking for a looser fit, then size up from the guide's suggestions.

Men’s Sizes

Waist

XS 28"
S 30”
M 32”
L 34”
XL 36”
XXL 38”

Inner Leg

XS 27" - 28"
S 28” - 30"
M 30” - 32"
L 32” - 34"
XL 34”
XXL 34"

Inner leg measurement based on standard inseam measurements.

Full sizing chart available in our website footer.

FABRIC COMPOSITION
48% Celliant® (Polyester)
36% Tencel™ (Lyocell) - Originates from renewable raw materials and is certified as compostable and biodegradable
16% Spandex

CARE INSTRUCTIONS
Wash at 30C/86F
Do not tumble dry
Do not dry clean
Do not add bleach