The Vertx Integrity Base is the foundational piece you can rely on when building out your cold-weather kit. Its streamlined design and lightweight construction take advantage of an efficient barrier of PrimaLoft insulation to hold chills at bay when it worn alone or when it integrates into the Integrity Shell and Recon Jackets for additional protection from cold and wet weather. With its water and stain-resistant nylon shell and quiet gusseted Polartec Hardface stretch fleece side panels, the Integrity Base Jacket wont bind, restrict or announce your movements. Snug stretch cuffs and the zip-through polyester suede-lined collar puts the icing on the cake by effectively and comfortably sealing icy blasts on the outside. When temps are low, keep your performance high in the Integrity Base Jacket. FeaturesWind- and water-resistant shell with PrimaLoft insulationGusseted Polartec Power Stretch fleece side panelsExtended tail maintains coverage during strenuous activitiesCan be layered into the Integrity Shell and Recon JacketsZippered handwarmer pockets with fleece insulation panelLarge zippered internal chest security pocketFull front zipper ConstructionAthletic fitLockstitched seams at critical wear pointsSavoire suede collar for comfort and added warmthNon-binding stretch draft-proof cuffsYKK self-repairing nylon coil zippers Fabric and Technology9-ounce nylon water- and stain-repellant shellPrimaLoft 68-gram insulationPolartec Power Stretch 90% polyester/10% spandex side panels40D ripstop nylon liningSoft polyester savoire suede collar lining