Knox Thermal shirt Dual Active

The Knox Dual Active Base Layer forms the foundation of the Seasonless Collection, engineered as the first layer worn next to the skin. Designed for year-round performance, it delivers a precision fit, lasting comfort, and advanced moisture control. Intended to be worn beneath a Knox armoured shirt, it prevents stickiness and discomfort in the heat, while its versatile design makes it equally suited to other active sports.

Reinvented for 2026, the Dual Active range is crafted from fine, breathable polyester and spandex, delivering a soft, smooth touch while maintaining exceptional stretch and mobility. Bonded seams and reduced stitching create an ultra-flat, streamlined fit, minimising bulk and eliminating pressure points beneath other layers.

The base layers include finishes from technical fabric specialist, Rudolf, incorporating:

HYDROCOOL®: Advanced moisture management draws perspiration away from the body for rapid drying and optimal comfort.
SILVERPLUS®: Long-lasting antibacterial protection prevents odour-causing bacteria, reducing the need for frequent washing and extending garment longevity.
Strategically placed die-cut ventilation zones under the arms and between the shoulder blades enhance airflow and moisture control, ensuring a fresh, comfortable feel even during intense activity.

The Men's Dual Active Base Layer Long Sleeved Top offers a tailored, slim fit with curved bonded seams at the sleeves and a polished finish at the neck, cuffs, and hem. Subtle mountain print panels and understated Knox branding add a signature, sophisticated aesthetic.

Available in Black and Light Grey, the Dual Active Base Layer combines technical excellence with refined luxury, providing unparalleled comfort, performance, and style - ready for every season, multiple sports, and every ride.