Tailored for mid to late season, The Core Kit brings a new level of versatility and technology for the heart of the whitetail season. With First Lite&rsquo;s standard KitLinkTM pass-thru magnetic pockets, the Core Bib seamlessly integrates with the Core Jacket, Vest, and the Bib&rsquo;s muff pocket.<br /> <br /> The Core Bib is constructed with 60gsm legs / 80gsm body + 60gsm in the hand warmer chest panel of PrimaLoft&reg; Gold insulation and windproof technology to keep you more comfortable, and in the stand longer, on the most blustery of days.<br /> <br /> The versatile Core System is optimized for performance through the core of many hunters&rsquo; deer seasons; hunts from late October through November when the mornings are frosty and northern winds bring signs of winter. Windproof and Dead Silent. Fully-featured. Seamless integration. Worn on their own or combined to maximize the kit&#39;s true performance, the Core Kit offers never-before-seen versatility for the whitetail hunter.<br /> <br /> Parker is 5&#39;9&quot; 175 lbs wearing a size Medium.<br /> <br /> <strong>Where to Use<br /> Temperature:</strong> <ul> <li>20F - 45F</li> </ul>