The Sanctuary 2.0 is purpose-built for bitter-cold days in the treestand and is the coldest weather component of the First Lite Layering Kit. With a proprietary combination of seven layers of fabric and insulation carefully positioned to maximize warmth, this thing is an oven. The updated version has an improved patterning and fabric package that utilizes our Shooter's cut, allowing you to draw your weapon accurately and uninhibited. Additionally, it's ultra-quiet, durable, water-resistant, and includes our improved windproof technology.