Men's Infrared Performance Baselayer Top LS
Men's Infrared Performance Baselayer Top LS
Men's Infrared Performance & Training Baselayer. Clinical studies show users can gain up to an 8. 7% athletic performance enhancement from first wear . .
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Colour
Payment options available.
Easy returns.
Payment options available.
Easy returns.
Men’s Infrared Performance Baselayer Top
Overview
The Men’s Infrared Performance Baselayer Top is engineered for athletes who demand more from every session — more power, more control, and more consistency. Using KYMIRA’s clinically supported infrared‑emitting textile technology, this top converts your natural body heat into infrared energy that increases circulation, enhances oxygenation, and improves cellular energy output during training and competition.
Designed for athletes across sports, endurance training, gym performance, and year‑round conditioning, this baselayer is your foundation for better warm‑ups, harder sessions, smarter thermoregulation, and faster recovery.
Key Benefits
1. Perform better, for longer: Clinically proven, naturally accelerated biological effects.
2. Comfort you can push in: Performance cut with seamless gusset and flatlock seams for chafe‑free training and matches.
3. Stay focused when it heats up: Breathable, quick‑drying fabric and temperature regulation support from infrared help manage heat and sweat during efforts.
4. Train. Play. Recover: The same infrared technology continues working after you stop, supporting immediate in and post‑session recovery — a principle shared across KYMIRA’s recovery ranges.
5. Safe to use, natural, approved results. Our garments can be worn at all levels of competitive performance.
6. The most versatile baselayer for everyday active, outdoor and sporting activities
Fit & Construction
- Performance‑Driven Fit Across the Upper Body
- Supportive contouring across the shoulders and upper torso, ideal for both power movements and mobility work.
- Athletic second‑skin fit for layering under training tops, match kits, cold‑weather gear or protective equipment.
- Premium Fabric Engineering
Including movement‑ready design and durable stitching — this top is built for high‑frequency use.
- Breathable, quick‑drying fabric engineered for temperature control and sweat management
- Extra durable stitching for longevity under repeated load
- Triple‑stitched hems for reinforced strength during training
- Stretch performance knit allowing unrestricted motion
- Flatlock seams to minimise irritation and chafing, maintaining comfort through intense sessions
Ideal Use
Optimised for both daily training and high‑performance environments:
- Strength training & power work
- Endurance running & conditioning
- Pitch‑based sport (rugby, football/soccer, lacrosse, hockey)
- Indoor gym training & HIIT
- Cold‑weather outdoor sessions
- Warm‑ups, movement prep & mobility routines
- On‑road and long‑haul travel (for circulation support)
- Recovery days, active recovery & physiotherapy sessions
- Adventure outdoor baselayer, winter sports, hiking, travel, SPF protection
Perfect for:
- Professional sport programs, collegiate athletics, academies & high‑performance departments (US & UK)
- Dedicated athletes seeking measurable performance and recovery advantages
- Active everyday training, competition and outdoor activity wear
Use Protocol
Wear at least 30 minutes before (90 minutes is optimal for priming) + during training, matches and performing.
Swap to our recovery wear for 1–4 hours after for peak recovery.
The Science Inside KYMIRA's Infrared Performance Baselayers
What it is
KYMIRA’s patented KYnergy® infrared textile embeds a matrix of bioceramic minerals into each fibre. These minerals capture body heat and convert it into far‑infrared (FIR) light in the 6–14 µm range, a wavelength shown in clinical literature to penetrate tissue and stimulate beneficial biological responses that support circulation, oxygenation, energy production, and recovery.
How it works (step‑by‑step the headlines)
1. Energy conversion: Body heat → absorbed by mineral matrix → re‑emitted as FIR (6–14 µm).
2. Nitric Oxide Activation → Vasodilation
FIR exposure is linked to increased nitric oxide availability, promoting local vasodilation and improved micro‑circulation.
3. Enhanced Oxygen Delivery (tcPO₂)
Independent tcPO₂ studies show that FIR garments raise tissue oxygenation, supporting aerobic energy pathways at a lower physiological cost.
4. Mitochondrial efficiency: FIR accelerates cellular energy (ATP) production, aiding sustained output and reduced fatigue.
5. Improved Biological Signalling (Adaptation Support): Exercise studies show FIR garments activate signalling pathways related to mitochondrial biogenesis and angiogenesis
6. Thermal Comfort & Temperature Balance
FIR helps stabilise micro‑temperature during and after exercise, while the textile maintains breathability and moisture management.
And more...
Why it matters for performance
- Increased Power, Strength & Endurance Capacity
Improved oxygen delivery, faster aerobic system activation, and more efficient ATP energy production, combined with reduced oxygen consumption requirements, support higher sustained intensities and greater total work output, increased average power, stronger muscles, better neuromuscular efficiency, increased explosive power, coordination. In clinical trials by the University of Loughborough, wearing KYMIRA Infrared has been shown to improve athletic performance by up to 8.7% from first wear.
- Better Movement Quality & Soft Tissue Readiness
Enhanced local circulation and oxygenation help prime muscles to be stronger and more flexible, improving mobility, reducing stiffness, and supporting more consistent movement patterns during sessions. Clinical trials show users have better control and stability during high-speed movements, alongside increased jump height and grip strength.
Greater acute skeletal muscle adaptive responses during exercise, with increased mitochondrial and angiogenic signalling. Leading to quicker training adaptions biologically.
- Rapid in-session recovery: The same mechanisms support repair — removing waste products like lactic acid quicker, reducing muscle micro-tears that create DOMS, reducing in-session fatiguing and inflammation marker metabolites, and activating the pain and inflammation modulating pathways, reducing feelings of soreness.
Why KYMIRA Supports Injury Prevention
- Enhanced local circulation and oxygenation help prime muscles to be stronger and more flexible, improving mobility, reducing stiffness, and supporting more consistent movement patterns during sessions. Clinical trials show users have better control and stability during high-speed movements. This prevents the creation of micro muscle tears that contribute to DOMS, and to larger soft-tissue injuries.
- Improved oxygenation supports efficient muscular contraction and reduces fatigue related injury risk.
- Cellular energy support (enhanced energy ATP production), reduced aerobic pathway and oxygen use, greater endurance and reductions in fatiguing metabolites in session, supports stable movement patterns and reduces compensatory mechanics from tiredness.
- Temperature regulation helps prevent cold related tightness and maintains muscle compliance.
- Accelerated recovery mechanisms, reductions in fatiguing metabolites, and reductions in inflammatory markers during and between sessions, reduce cumulative tissue stress experienced in session.
- Increased angiogenic signalling and mitochondrial angiogenesis support quicker training adaptions for safer movements.
Learn more in our Science area
Model is wearing: Size Medium
Model's height: 183cm / 6'0''
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
Top (Chest)
XS 34" - 38"
S 36” - 38″
M 38″ - 40”
L 40″ - 42”
XL 42“ - 44”
XXL 46″ - 48”
Full sizing chart available in our website footer.
FABRIC COMPOSITION
50% KYnergy Polyester
32% Polyester
18% Elastane
CARE INSTRUCTIONS
Wash at 30C/86F
Do not tumble dry
Men’s Infrared Performance Baselayer Top
Overview
The Men’s Infrared Performance Baselayer Top is engineered for athletes who demand more from every session — more power, more control, and more consistency. Using KYMIRA’s clinically supported infrared‑emitting textile technology, this top converts your natural body heat into infrared energy that increases circulation, enhances oxygenation, and improves cellular energy output during training and competition.
Designed for athletes across sports, endurance training, gym performance, and year‑round conditioning, this baselayer is your foundation for better warm‑ups, harder sessions, smarter thermoregulation, and faster recovery.
Key Benefits
1. Perform better, for longer: Clinically proven, naturally accelerated biological effects.
2. Comfort you can push in: Performance cut with seamless gusset and flatlock seams for chafe‑free training and matches.
3. Stay focused when it heats up: Breathable, quick‑drying fabric and temperature regulation support from infrared help manage heat and sweat during efforts.
4. Train. Play. Recover: The same infrared technology continues working after you stop, supporting immediate in and post‑session recovery — a principle shared across KYMIRA’s recovery ranges.
5. Safe to use, natural, approved results. Our garments can be worn at all levels of competitive performance.
6. The most versatile baselayer for everyday active, outdoor and sporting activities
Fit & Construction
- Performance‑Driven Fit Across the Upper Body
- Supportive contouring across the shoulders and upper torso, ideal for both power movements and mobility work.
- Athletic second‑skin fit for layering under training tops, match kits, cold‑weather gear or protective equipment.
- Premium Fabric Engineering
Including movement‑ready design and durable stitching — this top is built for high‑frequency use.
- Breathable, quick‑drying fabric engineered for temperature control and sweat management
- Extra durable stitching for longevity under repeated load
- Triple‑stitched hems for reinforced strength during training
- Stretch performance knit allowing unrestricted motion
- Flatlock seams to minimise irritation and chafing, maintaining comfort through intense sessions
Ideal Use
Optimised for both daily training and high‑performance environments:
- Strength training & power work
- Endurance running & conditioning
- Pitch‑based sport (rugby, football/soccer, lacrosse, hockey)
- Indoor gym training & HIIT
- Cold‑weather outdoor sessions
- Warm‑ups, movement prep & mobility routines
- On‑road and long‑haul travel (for circulation support)
- Recovery days, active recovery & physiotherapy sessions
- Adventure outdoor baselayer, winter sports, hiking, travel, SPF protection
Perfect for:
- Professional sport programs, collegiate athletics, academies & high‑performance departments (US & UK)
- Dedicated athletes seeking measurable performance and recovery advantages
- Active everyday training, competition and outdoor activity wear
Use Protocol
Wear at least 30 minutes before (90 minutes is optimal for priming) + during training, matches and performing.
Swap to our recovery wear for 1–4 hours after for peak recovery.
As Worn By
As Used In
“KYMIRA Infrared is about the extra 5%… and the increase in energy. It’s a noticeable difference.”
Mark Richardson
GB Sprinter
“KYMIRA helps me perform at my best… you must be able to perform as close to your best as possible as many times as possible per year.
Cameron Buchan
GB Rower