Stay warm and safe in the Brooks Run Visible Insulated Vest. Being visible is an important part of running safely at night, and this vest offers 360 degrees of visibility in the dark thanks to fluorescence, high contrast and 3M™ Scotchlite™ Carbon Black Stretch reflectivity in critical motion zones to help drivers recognize you as a runner in motion. The Run Visible Insulated Vest has materials and features to keep your core warm and dry while allowing your arms a full range of motion. Designers added Thermolite insulation in critical zones to keep the chill out and DriLayer® Seal fabric for wind and water resistance. This vest was made for runners and walkers—it features draft-flap snaps along the zipper that keep the vest in place if you unzip for ventilation and two secure hand pockets to store doggie bags, nutrition and other essentials. Whether you are walking the dog in the evening or doing your long run before the sun comes up, do it in some of the best reflective clothing for runners. Body Woven 1: 100% Recycled Nylon. Body Woven 2/ Lining: 100% Recycled Polyester. Body Knit: 78% Polyester, 22% Spandex. Insulation: 100% Polyester. Made with bluesign®-certified materials