MERINO Jersey Black

MERINO Jersey Black


The KC MERINO jersey blends the exceptional comfort of the merino wool with 37.5® technology for the ultimate all-season cycling garment.


The KC MERINO jersey blends the exceptional comfort of the merino wool with 37.5® technology for the ultimate all-season cycling garment.

Bringing together the natural properties of the merino wool and 37.5® technology allowed us to create a cycling jersey with exceptional moisture management properties, superior comfort, excellent durability and keeping your body temperature at an optimum level whatever the weather conditions.

Merino fabric reacts to the temperature around you and adopts to it by keeping you warm on cooler days, and cooling you down when the weather gets hot. Combine it with extreme strength and resilience, superior comfort and odour resistance and you have a truly all-season cycling jersey.


37.5 Thermoregulation Technology

The 37.5 Thermoregulation Technology helps to maintain your body at the ideal core temperature of 37.5 degrees Celsius and keep the micro-climate next to your skin at the ideal relative humidity of 37.5%. It's scientifically proven to increase stamina by reducing the amount of energy used to manage core temperature and improve efficiency so you use less energy to do the same amount of work.

It triggers off of humidity which is the gauge of whether you're hot or cold. When you're hot, the active volcanic sand particles embedded into the material use your body's energy to remove moisture and cool you down. When you're cold, the active particles retain body's energy to warm you up.

37.5 particles also trap odour molecules and then release them when they're washed and dried. Also, because those particles are permanently embedded in the fibre, they will last the lifetime of the garment.


37.5 active particles increase performance and comfort

37.5 technology helps to warm you up when you're cold and cool you down when you're warm

37.5 technology helps you maintain a comfortable personal microclimate relative humidity of 37.5%

37.5 technology removes sweat in the vapour stage before liquid sweat forms

37.5 active particles are derived from nature

37.5 technology traps odours and then releases them when washed and dried

37.5 technology works for the entire life of the garment/clothing


Ergonomic Line Technology

Because there is nothing more important than feeling good when being challenged, we have created a unique ergonomic cutting line across the shoulders to optimise comfort in the riding position.

Exclusively designed by KC, the Ergonomic Line technology draws on the experience of professional riders and endless hours spent on the bike during the most gruelling cycling races.

As a result we've come up with the perfect fabric shape and optimum stitch placement to prevent any skin irritation, offer ample support across the shoulders while in the riding position, ensure unrestricted movement when reaching to your back pockets or for your bottle, and thus substantially increase the overall comfort and feel of our garments.



  • 37.5® wool/polyester fabric.
  • Full center front zip with reflective stripes and a chin guard.
  • Reflective branding and zipper.
  • Reflective elements.
  • 3 back pockets and 1 zippered pocket.
  • Elasticated band with silicone print at hem.
  • Elasticated band on the arms.
  • Designed in Switzerland.
  • Made in Europe.
  • Composition: 61% Wool, 33% Polyester, 6% Elastane

Size Chart & Fit


The roomier cut of the KC regular fit has been created to optimize comfort and freedom of movement during longer days in the saddle. The garment is cut longer at the front and built with an extremely high-stretch fabric, ensuring adequate coverage and catering for a wide variety of body shapes.

Sizing recommendation: If you prefer a tight fit of your cycling garments, many of our customers would recommend choosing one size smaller than normal.

Product Care

Katusha MERINO Cycling Jersey Short Sleeve - Black

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