• flat elastic Flatlock seams
• ergonomic athletic fit
• adjustable collar configuration
• side and underarm inserts for more efficient moisture management
• 10 × 15 cm hook-and-loop panels on the sleeves with a pen opening
• Cryo-Tac™ technology helps maintain a cooling sensation in hot weather
• special fabric treatment promotes quick drying and helps control the development of unpleasant odors
• material – Warp Knit Mesh with Cryo-Tac™ properties (78% Nylon, 22% Elastane, 200 g/m²)

5.11 Tactical® V.XI™ Sigurd MultiCam® S/S Shirt is a short-sleeve tactical moisture-wicking shirt developed for intensive physical activity, training, military service and prolonged use in hot weather. The model combines stretch mesh fabric, Cryo-Tac™ thermoregulation technology, an ergonomic cut and functional features required for use in field conditions.

The V.XI™ Sigurd S/S Shirt is primarily designed for military personnel, law enforcement professionals, instructors, shooters and users who remain physically active in hot conditions. At the same time, its functionality makes it suitable for sports, range training, hiking and other outdoor activities. Thanks to its athletic fit and stretch material, the shirt can be worn on its own or used as a functional base layer within a multi-layer clothing system.

The model is also available in a long-sleeve version – 5.11 Tactical® "V.XI™ Sigurd L/S Shirt". Depending on the season and the task, the shirt can be combined with tactical pants or shorts.

Cryo-Tac™ Technology and Material Features

The V.XI™ Sigurd MultiCam® S/S Shirt is made from Warp Knit Mesh fabric featuring Cryo-Tac™ properties. The material consists of 78% nylon and 22% elastane with a fabric weight of 200 g/m². This combination provides a balance of durability, stretch, breathability and comfort during active movement.

Cryo-Tac™ technology is designed to help maintain a cooling sensation when the garment is used in high temperatures and during physical activity. Combined with the mesh structure of the material, it helps manage heat and moisture more effectively, which is particularly important during prolonged work in direct sunlight, training or active movement.

The material features a special treatment that promotes rapid moisture transfer away from the skin and helps the shirt dry faster. This helps reduce moisture accumulation during intensive activity and supports a more stable microclimate next to the body. Additional fabric properties help control the development of unpleasant odors during prolonged wear.

Nylon provides the material with the durability required for regular field and training use, while the 22% elastane content allows the fabric to stretch with body movement and return to its original shape. This is particularly important for an athletic-fit tactical shirt that needs to remain close to the body without restricting movement.

Construction for Active Movement

5.11 Tactical® V.XI™ Sigurd S/S Shirt features an ergonomic athletic fit. It provides a stable fit during running, shooting drills, equipment handling and other active movements. The elasticity of the material allows the shirt to move with the body without creating excessive loose fabric.

Special attention has been given to the construction of the underarm and side areas. The seams are repositioned away from areas where the greatest amount of friction occurs during active movement, while special inserts help improve ventilation, moisture management and fabric drying. This construction is particularly useful during prolonged physical activity in hot weather.

The shirt panels are joined using flat Flatlock seams. Unlike bulky conventional seams, they create a smoother interior surface, helping reduce localized chafing. The seams work together with the stretch material and do not interfere with the natural extension of the fabric during movement.

Adjustable Collar Construction

One of the distinctive features of the V.XI™ Sigurd is its adaptable collar construction. It can be configured as a high stand-up collar, worn as a fold-down collar or tucked inside.

The high collar configuration provides additional neck coverage from direct sunlight and can be useful during prolonged work in exposed terrain. The ability to change the collar position allows the shirt to be adapted to temperature, equipment and the user's personal preferences.

Hook-and-Loop Panels for Identification

Both sleeves feature 10 × 15 cm hook-and-loop panels. They are designed to accommodate identification markings, flags, duty insignia or collectible patches from 5.11 Tactical®.

A pen opening is integrated into the panel construction, adding functionality for duty use. This solution keeps a small writing instrument readily accessible without requiring a separate pocket.

Comfort in Hot Weather

The V.XI™ Sigurd MultiCam® S/S Shirt is designed for conditions in which a conventional cotton T-shirt can quickly become saturated with perspiration and remain wet for an extended period. The functional synthetic material works differently: it helps move moisture away from the skin and distribute it over a larger surface area of the fabric, where it can evaporate more quickly.

The mesh structure, Cryo-Tac™ technology, stretch fibers and specially designed side and underarm areas work together as an integrated thermoregulation system. This helps maintain comfort during intensive training, prolonged range sessions, patrol duties, field operations and other activities during warm weather.

Who Is the 5.11 V.XI™ Sigurd S/S Shirt Designed For?

• military personnel from various branches of service
• law enforcement and security professionals
• firearms and tactical training instructors
• athletes and shooters
• users training at shooting ranges or training grounds
• hikers and outdoor enthusiasts
• users who require functional moisture-wicking clothing for hot weather

Advantages During Use

• Thermoregulation: Cryo-Tac™ helps maintain a cooling sensation during activity in hot weather
• Moisture management: functional fabric helps move perspiration away from the skin and dry more quickly
• Freedom of movement: high elastane content and anatomical construction allow the material to adapt to body movement
• Reduced chafing: flat Flatlock seams create a smoother interior surface
• Ventilation: mesh construction and specialized inserts improve airflow in areas of increased perspiration
• Durability: the nylon-based fabric is designed for regular training and field use
• Identification: large sleeve hook-and-loop panels accommodate duty and tactical patches
• Adaptability: the collar configuration can be adjusted according to weather and operating conditions

Practical Recommendations for Use

In hot weather, the V.XI™ Sigurd S/S Shirt is best used as the primary functional layer worn directly against the body. Its close yet flexible fit provides effective contact between the fabric and skin, which is important for efficient moisture management.

During prolonged exposure to direct sunlight, the collar can be raised to provide additional neck coverage. For training or everyday use, it can be folded down or tucked inside.

After intensive activity, the shirt should be allowed to dry before prolonged storage. Following the recommended washing temperatures helps preserve the elasticity of the material, the functional properties of Cryo-Tac™ and the shape of the garment for longer.

Technical Specifications

• brand – 5.11 Tactical®
• model – V.XI™ Sigurd MultiCam® S/S Shirt
• type – short-sleeve tactical moisture-wicking shirt
• camouflage – MultiCam®
• fit – ergonomic, athletic
• seams – flat Flatlock
• technology – Cryo-Tac™
• sleeve hook-and-loop panels – 10 × 15 cm
• material – Warp Knit Mesh with Cryo-Tac™ properties
• composition – 78% Nylon, 22% Elastane
• fabric weight – 200 g/m²

FAQ

What weather conditions is the 5.11 V.XI™ Sigurd S/S Shirt designed for?
The model is primarily intended for warm and hot weather as well as intensive physical activity where effective moisture management and quick-drying performance are important.

What does Cryo-Tac™ technology do?
Cryo-Tac™ helps maintain a cooling sensation during physical activity in hot conditions. Together with the mesh structure of the fabric, the technology promotes efficient heat and moisture management.

Can the V.XI™ Sigurd be used for military service?
Yes. The shirt is designed for military personnel, law enforcement professionals, instructors and other users who require functional clothing for active work in hot conditions.

Is the shirt suitable for sports?
Yes. The stretch material, anatomical cut, flat seams and effective moisture management make the model suitable for running, functional training, shooting practice and other physical activities.

What are the hook-and-loop panels on the sleeves used for?
The 10 × 15 cm panels can accommodate duty identification markings, flags, insignia and patches. They also feature an integrated pen opening.

Why are Flatlock seams beneficial during active use?
Flatlock construction creates a flat connection between fabric panels with fewer raised areas on the inside of the garment. This helps reduce chafing and allows the seams to stretch together with the elastic fabric.

Can the collar position be changed?
Yes. The construction allows it to be worn as a stand-up collar, a fold-down collar or tucked inside depending on the conditions of use.

Care Instructions

• machine wash at temperatures up to 30°C
• iron at a low temperature up to 110°C
• tumble dry at a low temperature up to 60°C
• do not bleach
• do not dry clean

5.11 Tactical® V.XI™ Sigurd MultiCam® S/S Shirt combines functional Cryo-Tac™ fabric, effective moisture management, stretch performance and a construction adapted to active movement. It is a practical tactical shirt for military service, shooting training, sports and other activities in hot weather.

Shipping and payment

Information about sending orders:

• orders are sent within Ukraine by the logistics company Nova Poshta
• delivery time from the moment of ordering is on average 2-3 days (and up to 5 days if the product is in a remote warehouse)
• shipping days for orders are from Monday to Saturday
• fragile items (glasses, mugs, etc.) are securely packaged in bubble wrap with a "Caution Fragile" mark on the box
• detailed information on the website in the "Delivery" web page

Available payment methods for your order:

• cashless payments
• payment upon receipt (cash on delivery)
• detailed information on the website in the "Payment" web page