Mk4.0 Jacket
Waterproof
Mk 4.0 Tactical Jacket – Waterproof Military Outer Shell UK
Developed for the modern warfighter, this jacket combines cutting-edge System Dual Protection (SDP) technology with rugged, field-tested design.
- Fully Waterproof Outer Shell: Built to keep you dry and operational in the harshest downpours.
- Enhanced Breathability: The SDP membrane manages condensation to maintain comfort and focus during extended missions.
- Tactical-Ready Design: Lightweight, durable, and engineered for unrestricted movement in demanding conditions.
- Military Clothing Innovation: Perfect for integration into any tactical gear system, built for professionals across defence, law enforcement, and adventure.
Whether on deployment or in adverse weather, the Mk 4.0 Tactical Jacket is one of the best tactical jackets UK operators rely on for waterproof performance and uncompromising durability.
CONDENSATION CONTROL
WATERPROOF
WINDPROOF
BREATHABLE
PRODUCT OVERVIEW
The MK6.0 Tactical Jacket is lightweight, waterproof, and built for professional operations in unpredictable environments. Constructed from genuine MultiCam Original fabric, it delivers advanced ventilation and moisture management through System Dual Protection (SDP) Technology, keeping you comfortable during high-output activity.
As all-in-one operational gear, the Mk6.0 combines weather protection, durability, and freedom of movement, supporting operational mobility in demanding field conditions. Designed for military, law enforcement, and professional operators, it provides dependable protection and long-term durability.
Key Performance Highlights
- System Dual Protection (SDP) – Advanced ventilation and moisture management with superior condensation control
- Heat Management Under Load – Maintains comfort during sustained activity
- Reduced Heat Signature – Supports low thermoregulation visibility
- IRR Compliant Fabrics – Minimises infrared signature
- All-in-One Gear – Weather protection, breathability, warmth, and durability in a single layer
- Operational Mobility – Ergonomic tailoring for natural movement and agility
- Freedom of Movement – Reduces restriction during prolonged wear
- Low-Bulk Waterproof Protection – Reliable weather resistance without extra weight
Materials & Technologies
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System Dual Protection (SDP) - Award-winning dual-layer membrane system that manages moisture and condensation while providing advanced ventilation for comfort during high-output activity, along with weather protection. Read more |
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MultiCam® Original Print - Printed with officially licensed MultiCam® |
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YKK™ Zippers - Durable, high-performance zippers built to withstand tough and challenging conditions. |
FEATURES
- SDP (System Dual Protection)
- Waterproof, windproof and breathable
- IRR with reduced thermal signature
- Rated to -5°C without the need for additional warm layers
- Foldaway storm hood, which zips into collar. Hood provides full coverage and secure fit while still providing the wearer exceptional freedom of movement and vision. Fitted with a wired peak
- 4 large bellowed pockets on the front of the jacket with covered storm flap and extra-large buttons to allow easy access even when the hands are gloved for winter and arctic conditions and fitted with twin draining ports
- 2 lower zipped handwarmer pockets
- External compass pocket on the front top LH breast pocket
- All pockets have internal lanyard loops and the top pockets an additional - ring for the attachment & security of essential items
- Central breast pocket with external rank tab 2 large internal zipped pockets with an additional pen pouch
- Large YKK storm covered 2-way front zip
- Extra mil-spec press studs at the hem of the jacket help keep the storm zip covered at the bottom of the jacket when the wearer is tabbing & climbing
- Pit zippers (covered) to allow extra ventilation in extreme activities
- Reinforced articulated elbow pockets with contoured elbow protection pockets to allow the fitting of internal joint protection
- Each sleeve has an accessible storm covered pocket along with a loop panel designed for the wearing of unit insignias and rank as well as
- IFF markers and call signs
- Soft cuff adjusters so no friction and cuts
- Cut longer than most and generous in size allow for the wearer to add more layers without restricting movement
- Hem and hood adjusters with push locks allow for quick adjustment even with gloved hand
Choose options
SYSTEM DUAL PROTECTION (SDP)
All waterproof, breathable clothing eventually succumbs to condensation in wet and cold conditions. Keela Tactical’s System Dual Protection (SDP) is the only wet weather system designed to actively manage inner condensation.
• The 2-layer system, creates an “Air Gap” helping to build warmth, regulating body’s temperature & minimising shivering when inactive.
• Manages inner condensation and removes it, reducing the risk of freezing in low temperatures.
How SDP works:
- Dual layers = Dual protection
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Two-Layer System: Creates an air gap between layers that helps retain warmth and regulate body temperature.
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Condensation Control: Manages and moves inner moisture away from the body.
- Reduced Cold Risk: Helps prevent chilling and freezing in low temperatures, especially during periods of inactivity.
UK Delivery
Standard delivery (1–4 working days): £5.50 inc. VAT
Free standard delivery on orders over £20
International Delivery
Shipping costs and delivery times vary by country and are calculated at checkout.
Please note that international orders may incur additional customs or import charges.
Returns
All Keela garments are covered by our 100% satisfaction guarantee.
Unused items may be returned within 28 days of purchase for a refund or exchange, provided they are returned with original packaging, labels, and proof of purchase.
Free UK returns:
Create your Royal Mail return label here
Please allow up to 10 days for returns to be processed during busy periods.
Need assistance?
enquiries@keela.co.uk
01592 777000