With updated styling and tons of technical features, the ScentBlocker Knockout Jacket is built to perform without sacrificing style or comfort. Xtreme Lightweight Technology (XLT) combines a soft, quiet outer fabric with an embossed inner lining to create a super-lightweight, highly breathable garment. 4 Direction Stretch provides superior comfort, great fit, and uninhibited mobility. ScentBlocker's revolutionary Trinity scent control technology adsorbs human odor, keeping you fresher longer. BodyLock Technology strategically prevents easy escape of odor and forces it through the scent-adsorbing filter—at the wrists, neck, and waist—to allow maximum adsorption. The full-length front zipper extends through the top of the low-profile mock collar for added protection against chilly air. Raglan sleeves allow for a full range of motion in the arms for added comfort. The partial elastic waist and sleeve cuffs help seal in body heat for even greater warmth. An innovative slit in the back allows for easy attachment and concealment of your safety harness. Two lower front pockets and an angled chest pocket - all with secure snap closures - provide convenient storage for your essentials. 100% polyester XLT fabric. System Layer 3. Imported.