The Vertx Integrity Base Jacket 2.0 is a low-profile, high-performance jacket for rugged environments. Featuring 37.5® Ziran Insulation Technology and a durable nylon ripstop shell, this jacket keeps you warm and dry, while its wind- and water-resistant properties shield you from the elements. An athletic fit with stretch cuffs, gusseted fleece side panels, and lock-stitched seams ensure comfort and durability during any mission. Fleece-lined pockets and an extended tail add warmth and coverage, while the abrasion-resistant lining holds up against heavy use.