Our 100% post-consumer recycled proprietary NanoLoft® insulation is made up of tiny circular clusters of fiber that mimic the properties of down clusters. We use a 90/10 DWR, also known as a durable water repellent, on all of our blankets. This finish provides protection from the elements, making our blankets weather and stain resistant. The Cape Clip®, featured on all 1-Person blankets, allows you to wear your blanket hands-free so you can start a fire, drink your beer, or change the channel, all while staying warm. Rumpl Nanoloft Puffly Travel Blanket