The king of performance base layers
The 5.11 V.XI Sigurd Long Sleeve Shirt in Ranger Green sits at the top of 5.11’s base-layer line, loaded with mission-specific construction. Built from a 78% nylon / 22% elastane warp-knit stretch mesh, it delivers the freedom of movement and next-to-skin comfort demanded by serious users.
Cool-touch Cryo-Tac technology
The fabric carries 5.11’s Cryo-Tac treatment, giving a genuine cool-to-the-touch feel that works alongside enhanced moisture-wicking to help manage heat when you are working hard. An anti-odour finish keeps things fresher through long days.
Built to move
An athletic ergonomic pattern and flat-lock seam construction let the shirt fit close without chafing, whether you are on the range, on the site or training. The four-way stretch knit flexes with every reach, crouch and sprint.
Ready for your loadout
Loop patch panels on each sleeve let you add morale patches, ID or flags. Wear the Sigurd on its own, under a plate carrier, or as the foundation of a layering system. Discover more 5.11 tactical clothing at Platoon Stores, Kent’s only authorised 5.11 Tactical retailer.











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