TRAIL GRINDER II The Trail Grinder features a double draft tube, which is fixed to the bag so that it lies in the same direction as, and extends past, the zip. When the zips come together the draft tube sits firmly across the zip, minimizing draft and heat loss. The Dry loop built-in hanging loop makes for easy drying and cleaning. Other features include a woven reflective zipper pull, self-fabric closure with zipper pocket, and nine stitches per inch. It includes a compression sack for easy packing and storage. * Comfort Rating: +20 F * Fill: 2 lbs. ThermalC°™ * Shell: 185T polyester with cire * Liner: Micro denier * Size: 36" x 90"