Combining packability, fast-drying technical fabrics, and insulation to do everything a traditional blanket does, and so much more, the Therm-a-Rest Stellar Blanket is a true star in its class. Equally at home on the trail in fair weather as it is on the beach stargazing, this blanket is made from a water-repellent ripstop polyester fabric and boasts synthetic insulation to wrap you in warmth and high-performing functionality.