Knox Action Pro MK2 Shirt

Knox Action Pro MK2 Shirt

The Action Pro MK2 is Knox’s lightest and most breathable armoured shirt yet. Designed with movement and comfort in mind, it blends the protection you need on the bike with the feel and flexibility of everyday activewear.

This piece is part of Knox’s new Athleisure range, gear built for riders who want something lighter, more comfortable, and easier to wear without sacrificing safety. The Action Pro is a go-to option for warm weather riding or as a base layer under other gear.

Updated for 2025, this version features sustainable Sorona® Agile fabric from DuPont. It’s strong, stretchy, and partially made from plant-based materials. Combined with breathable mesh panels and a clean, minimalist design, this shirt feels as good as it looks.

Because it fits close to the body, the armour stays where it should, no more shifting around like in a loose jacket. It’s CE-certified for road use and even works well for other sports like MTB, off-roading, or snow riding.

Highlights:

• Made with Sorona® Agile fabric, a sustainable and stretchy fibre with plant-based polymers

• Lightweight four-way stretch mesh enhances breathability

• Strategically placed mesh panels on the chest, back, and underarms to keep you cool

• Three external welded pockets including a zip chest pocket and two zippered side bellows pockets

• Improved elastic mesh cuffs with thumb loops for extra comfort and ventilation

• Reflective details and branded zip pullers improve visibility

• Subtle Knox logo in the back hem that shows when stretched

• Soft, round collar and smooth YKK center front zip

• Can be worn on its own or as a low-profile base layer under a jacket

• Knox MICRO-LOCK Compact armour in the shoulders, elbows, and back (removable for washing)

• Optional MICRO-LOCK chest protector can be added inside the front

• Part of the Knox Seasonless Collection

• CE approved to EN 17092-3 Class A

Perfect for riders who want flexibility, airflow, and protection all in one.