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Knox Action Pro MK2 Shirt - Black
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The Action Pro MK2 is Knox’s lightest weight, most breathable armoured shirt ever. It is part of a new category of Athleisure styles from Knox. Athleisure is a growing trend of activewear clothing appropriate for exercise and everyday wear. This important new development by Knox acknowledges the increasing desire of some riders to ride in apparel that is comfortable, flexible, and stylish without compromising protection compared to traditional riding gear.
The Action Pro Shirt MK2 provides maximum airflow through meticulously placed mesh panels and new breathable mesh cuffs. Armoured shirts are central to Knox protective apparel, first introduced by the brand in the 1990s. They offer unparalleled protection due to their close-fitting nature, serving as a more breathable and lighter weight alternative to traditional motorcycle jackets.
Wearing a close-fitting armoured shirt like the Action Pro Shirt MK2 ensures the armour stays comfortably in place, rather than shifting around in a loose jacket. The shirt combines abrasion resistance with a lightweight, breathable design that hugs the body in a flattering fit. Updated for 2025, the shirt now includes sustainable Sorona® Agile fabric, an eco-efficient fibre partially made with plant-based polymers from Dupont. This fabric offers high levels of strength, stretch, and stain resistance, paired with Knox’s lightweight four-way stretch mesh and subtle monochrome contour fabric.
The Action Pro Shirt MK2 is equipped with three external pockets utilizing seamless welding, offering ample storage for possessions. Improved elasticated mesh cuffs enhance airflow, while reflective details, branding, and zip pullers provide visibility. The shirt also features Knox’s signature security belt loop system, ensuring riders can secure their trousers to the shirt. Designed for all types of motorcycle riders, the Action Pro Shirt MK2 offers Class A CE-approved protection, making it ideal for both road use and other adrenaline sports such as MTB, Off Road, and Snowsports.
- Made from sustainable Sorona® Agile fabric from DuPont, an eco-efficient fibre partially made with plant-based polymers, offering high levels of stretch and strength
- Lightweight four-way stretch mesh for greater breathability, combined with subtle monochrome contour fabric for added style
- Stretch mesh panels on the chest, back, and under the arms are strategically placed to keep the rider cool
- Three external pockets utilize seamless welding. Welded zip pocket on the chest and two zipped side bellow pockets provide ample storage space
- Improved elasticated mesh cuffs maximize airflow and include thumb loops for additional security
- Reflective details, branding, and zip pullers enhance visibility
- Hidden Knox logo in the back elastic mesh at the hem, revealed when stretched
- Soft, round, comfortable collar and YKK centre front zip
- Low-profile stretch armoured shirt suitable for riding on its own or under a motorcycle jacket for added abrasion resistance and impact protection
- Hybrid armoured shirt with stretch and flexibility, making it suitable for all types of active riding and other adrenaline sports
- Discreet and comfortable Knox MICRO-LOCK Compact armour in the shoulders, elbows, and back provided as standard. Removable armour for easy garment washing
- Branded Velcro inside the front for an optional MICRO-LOCK chest protector
- Machine washable garment - follow the label instructions for care
- CE approved to EN 17092-3 Class A, can be worn alone for road riding
Material | Sorona® |
---|---|
Construction | Single Layer |
Abrasion Resistance Coverage | Full |
Armour Pockets | Elbow, Shoulder, Back |
Armour Included | Elbow, Shoulder, Back |
Connection Zipper | No |
Weather Protection | None |
Clothing Certification | CE Level A |
Sizing for Knox Jackets as verified by the Adventure Rider team.
Garment Size is the size you add to your basket.
Fits Chest is your chest measurement in inches. Wrap a measuring tape around the fullest part of your chest to verify.
Garment Size | S | M | L | XL | 2XL | 3XL | 4XL | 5XL |
Fits Chest (in) | 35-37 | 38-40 | 41-43 | 44-46 | 46-48 | 48-50 | 50-52 | 52-54 |
Fits Chest (cm) | 90-96 | 98-103 | 104-109 | 110-115 | 116-121 | 122-127 | 128-134 | 135-141 |
Christmas Delivery
With disruption to postal services, we are sending all orders via next day courier to ensure arrival in time for Christmas day. Choose from FedEx, DPD and DHL at checkout.
UK Orders - Next Day Delivery: Order by 12 noon on Wednesday the 21st.
International Orders - Order by 12 noon on Monday the 19th.

Orders placed before 12pm (Monday to Friday) are shipped the same day, if all items are In Stock as indicated on the product page.

Any items that have a lead time (Ships in up to ... working days) are available with our supplier and need be ordered and recieved by our warehouse before being dispatched. Your order will be placed on hold until all items are ready to be dispatched.
Orders placed before 12pm (Monday to Friday) are shipped same day, subject to the stock availability indicated on the product page.
Any items that have a lead time (Ships in up to...) are available with our supplier and will be ordered and recieved by our warehouse before being dispatched.
UK Mainland
FREE Next Day* Delivery (from dispatch) and FREE Returns via DHL on orders over £50
£4.95 next day delivery via DHL on orders under £50.
*If ordered before 12pm (Monday to Friday). Subject to stock availability and dispatch lead time. See product page for details.
Excludes eBikes. Delivery via FedEx. See UK Delivery FAQ for details.
UK Non-Mainland (N. Ireland, Highlands, Islands)
Delivery via DHL or DPD
Shipping cost is calculated based on order weight and can be viewed in the basket.
Europe, USA, Rest Of The World
Delivery via DHL Express or Economy service
Shipping cost is calculated based on order weight and can be viewed in the basket.
Customs duty and local tax. Please be aware when your order arrives into the destination country and duty, taxes and administration fees are payable by the recipient.
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